Came across an article below. Makes me wonder what gear would the pros get if there is a competition rule stating "off the rack clubs only".....heheh
Choi buys off-the-rack irons for the Memorial
by Zak Kozuchowski | May 29, 2013
PGA Tour pros don’t often buy clubs off the rack, especially players who have won PGA Tour events. Those golfers can call just about any equipment manufacturer in the world and have a set of custom clubs overnighted to them if they so please.
That’s why we’re surprised to hear that K.J. Choi, who has won eight times on the PGA Tour, took a detour on his way to The Memorial Tournament in Dublin, Ohio, on Monday to visit a Dublin-area Golf Galaxy, where he purchased a set of off-the-rack irons that he has been using on the range and on the course at the Memorial Tournament in preparation for the event.
Earlier this year, Jim Furyk bought an off-the-rack Odyssey Versa #1 Wide putter from an Edwin Watts golf store in Orlando.
Choi is known as one of the most frequent equipment tinkerers on Tour, but he took it took it to a different level at Golf Galaxy. There are no equipment vans allowed on site at the Memorial, so Choi tested four different sets of irons at the retail golf store before purchasing a set of Mizuno MP-64′s with the company’s stock grips and stock True Temper Dynamic Gold S300 shafts.
“He tried a few different Mizuno irons, the MP-59′s, MP-69′s and MP-64′s,” said Doug Fleischmann, a players assistant at Golf Galaxy. “He also tried the Titleist  CB’s.”
According the Fleishmann, Choi went into a hitting bay at the store and hit each club about five to 10 times. Choi had store employees check the swing weights and lies on the clubs, and commented that all of the irons with the exception of the MP-64′s had swing weights that felt inconsistent.
When the swing weights were measured, Fleischmann said that the other clubs had swing weights that ranged from D2 to D4, while all of the swing weights of the MP-64′s (4 iron through PW), were D2.
Choi tees off tomorrow in Round 1 of the tournament at 8:04 a.m. EST on No. 10 with Michael Thompson and Mike Weir. We’re excited to see what clubs he brings to the tee.