No golfer’s equipment changes have been followed as closely, or with more scrutiny, than Tiger Woods. For some reason it just matters to us when he makes a change, and it influences the golf equipment world’s buying habits, too.

In his upcoming start in the Hero World Challenge in the Bahamas, Woods is expected to make some major equipment changes. After an extended period away from the game, and with Nike exiting the equipment business, Woods’ final decisions on golf equipment have been a frequent topic of conversation. The video below from a Sunday practice round for the event, however, all but confirms he will be using a TaylorMade M2 driver.

Related: Woods to use a Bridgestone B330S golf ball at the Hero

In honor of his return and expected equipment changes this week, we reminisce on the top-10 biggest equipment changes of Woods’ career.

10) A brief experiment

Woods with a TaylorMade R510 driver in 2003.

If Woods tees it up with a TaylorMade M2 driver at the Hero Challenge, it won’t be the first time he’s put a TaylorMade driver in play in competition. At the 2003 Deutsche Bank SAP Open in Germany, he used a TaylorMade R510 driver (7.5 degrees). Being that it lasted for only that week, it’s certainly one of the most surprising equipment changes Tiger ever made.

9) Swoosh in, Titleist “T” out

Tiger’s Titleist 681T irons, Vokey 200 Series wedges (58 and 60 degrees) and Scotty Cameron Newport 2 GSS putter.

When you think of Tiger in his prime, surely you think of 2000-2001. And here’s a look into his bag during that period. He was bagging Titleist “T” irons (the T stood for Tour, not “Tiger,” which was the cause of much confusion). Woods eventually moved on from the T’s, however, when Nike cooked up these beauties: the Nike Forged Blades.

Woods’ Nike Forged Blade irons.

Ask GolfWRXers what the best blade iron ever made was (join the discussion here), and someone will eventually mention (as easyyy did) the Nike Forged Blades that replaced Tiger’s Titleist irons. He went on to win a slew of majors with the swoosh-stamped irons, using variations of the Nike Forged Blades until he switched to the VR Forged irons in 2009.

Related: The Top-10 Best Nike Equipment Ever Made

8) Tiger drops the Titleist 975D driver

Tiger with a Titleist 975D driver (7.5 degrees) with a True Temper Dynamic Gold steel shaft

Not only was Tiger bagging Titleist irons in 2000-2001, but he also played Titleist’s 975D (7.5 degrees) through his most dominant years. He switched to a Nike driver in 2002, which he used to win the Masters and U.S. Open that year. He returned to the 975D in 2003, searching for more fairways, but like his one-week switch to a TaylorMade driver, it was just a brief experiment.

7) The Victory Reds, made to order

Tiger’s VR Forged irons. He used them during the 2009 and 2010 seasons.

Woods was initially reluctant to switch into the VR (Victory Red) Forged irons from the Nike Forged Blades that he used previously, despite the fact the new VR irons were developed with heavy input from Woods himself. He switched following his 14th major victory (and his left knee surgery), although conspiracy theorists claimed he never actually gamed the retail versions of the irons he designed. That would be a bit odd given they were designed for him, but just add it to the swirling conspiracies regarding Tiger and his golf equipment.

6) Tiger goes to Vapor, sends off Nike

Tiger with Nike’s VR Forged irons at the 2009 Arnold Palmer Invitational.

In late 2010, Woods switched from Nike’s VR Forged irons to the company’s VR Pro irons, which are the irons we expect him to use this week at the Hero. He used the VR Pro irons to win five times in 2013, which made his switch to Nike’s Vapor Pro irons in late 2014 all the more shocking.

Woods’ VR Pro Irons He used them from 2010-2014.

The Vapor Pro irons used what Nike called a “Modern Muscle Geometry” that moved weight toward the toe of the irons. According to Nike, it centered the sweet spot of the irons to improve performance… and they had a lime green swoosh.

The Nike Vapor Pro irons Woods last used on the PGA Tour.

The Vapor Pro irons were the final blade irons Nike released as a hard goods company, and Tiger never won a golf tournament with them in the bag.

5) A step down from steel

Woods last used Titleist’s 975D driver in 2003.

See all those “steps” in Tiger’s driver shaft in the picture above? He was one of the last professional golfers to switch to a graphite shaft in his driver. The one that stuck was a Mitsubishi Rayon Diamana Blueboard shaft, which is likely the first time you ever heard the Diamana name. We bet it’s not the last you’ve heard of Diamana either, as it remains one of the most popular shafts in golf today.

You can thank Tiger, at least in part, for the popularization of ultra-expensive, after-market graphite shafts.

4) Shaft switch-up

Woods used Graphite Design’s Tour AD-DI 7X shaft from 2010 to 2013.

Remember how we established that Tiger has supreme influence on the golf equipment world? Here’s another example. Before Tiger switched to Graphite Design’s Tour AD-DI 6X shaft in 2010, the company was mostly hanging its hat on the YS-series shafts. Today, the Tour AD series is available in more than a dozen models, and one of the most popular aftermarket shaft lines.

3) The putter before “the putter”

Tiger’s Scotty Cameron Newport 2 GSS putter.

Arguably golf’s most famous putter is Tiger Woods’ Newport 2 GSS Scotty Cameron, which Tiger used to win 13 of his 14 major championships.

Woods used a Scotty Cameron Newport Teryllium TEi3 putter to win the 1997 Masters.

But before that, Tiger employed a Newport Teryllium TEi3 putter from Scotty (a.k.a. “the one with the dots”), which was most notably in his bag to win the 1997 Masters.

2) Tiger tees up the swoosh

Woods’ Nike Tour Accuracy TW golf ball.

Tiger switched from Titleist’s Professional 90 (a wound golf ball) to a Nike Tour Accuracy golf ball in 2000 (a solid-core golf ball), and promptly won his next four majors… no big deal. Then in 2001, Nike released a Nike Tour Accuracy TW (and DD, for “David Duval”), capitalizing on the success of its two biggest stars.

Had he never teed up a Nike golf ball, this moment in sports history would have looked a bit different; and Nike would have been robbed of the ultimate advertisement for a product.

Some believe that Woods’ switch to a solid-core golf ball aided his runaway success in 2000-2001, as most Tour players were still playing wound golf balls at the time (Titleist’s Pro V1 wasn’t released to Tour players until October 2000).

1) The end of an era

Tiger with a Nike Method 001 putter.

After winning nearly every trophy available in the golf world with the Scotty Cameron Newport 2 previously mentioned, Tiger switched a new putter in 2010, the Nike Method 001. Many thought he would never switch, so it was huge news even to casual golf fans.

Tiger hasn’t won a major with the Method, but he did reel off five wins in 2013 to win PGA Player of the Year with it in the bag. Rumor has it, we might see the Scotty back in the bag at the Hero. Does it have any more magic left in it?

Surely we missed something on this list. Let us know your thoughts in the comments section below.