I'm still trying to narrow it down and hear some feedback on the smallest, thinnest, meanest and toughest frames out there. I just love the feel and look of my n6.1 Tour 90, but maybe I'm missing something? Does RDX 500 has larger sweetspot and is more comfortable? Does 85 sq. inch head of PS6.0 feels similar to n6.1 Tour 90? Are Redondo, Prestige and O3 like apples and oranges? Note: I listed head and beam size next to the names. i'm sorry if not all popular frames are listed.