EdSubpar:
I have been trying to conquer The Olympic Club with my tried and true Taylormade Tour Preferred Full Set (L64+). I found it damn near impossible to shoot below 77. It was so frustrating! Club distances were all wacky. I could not count on anything. I was very used to these clubs -- been using them for 4-5 months.
Then I rented the Ping G20 set. UNBELIEVABLE. I can shoot par on The Olympic Club now. I think it really sucks that these clubs make that much difference. Seems unfair. My Taylormade clubs are good. Why don't they work at The Olympic Club?
Edsubpar
I have the L63 TP's. In about 15 attempts, my best on Olympic is 64 with them. Shot that 4 or 5 times. I steadily improved from a 70/72 down to a 64... using L45 Cal i(z). And... on my best rounds, I'd still miss 3-4 putts inside 10-12 feet. My suggestion is... you have to pay VERY close attention to elevation and wind when playing the TP's.
That being said, I just got the L59 G20's.... On my first two attempts, 67, 64... still missing putts... the greens on Olympic are full of odd random, "freak occurences". I'd rather putt on Oakmont... where it's faster but more predictable.
The difference between the TP's and L59 G20's... the long irons... 3, 4, 5,... fly higher and land softer. There are a few shots, 3-5 depending on wind... where the G20's are better on Olympic. HOWEVER, they are MUCH MUCH better on a course like BPB back 9... where I've finally reached the green and birdied #15. I could barely break par from Legend tees on BPB back 9... but with the G20's... I think I can consistently shoot 32.
One more thing... the G20's play a little shorter than the TP's, especially with full back spin... so to take maximum advantage of the higher trajectory, and get the most out of the clubs, you pretty much have to use Nike L48 balls.