On another note, I dont think Tiger carries more than a sand and lob wedge, unless you count the PW. I could be wrong though.
He doesn't. And neither does Annika.
If you hit your PW 160 yards, that would make more sense to spread out your wedge gaps. But if you hit it 125, you're just increasing the overlap.
I play a low bounce 53* that I play about 110 max and a low bounce 60* that I can hit about 70 yards and that I can open up for a flop. I really can't see any need for anything beyond that. I had a 56, never used it. I rarely use my PW at any time. It's easily the least used club in my bag, even less so than my 3 or 4 iron.