I liked both in the old days, if I had to pick I slightly prefer beam...thought extra power and spin was nice from the O3. Feel is Different, but I played well with both. I picked up O3 this time.Yeah I've never tried one actually. Definitely curious, but then I'd have an albatross when it comes to getting it strung. Truthfully, I'm plenty satisfied with my classic beam in every category. It responds really well to my favorite hybrid which is the Zyex/Kevlar crossfire as well, so what's not to like. It's a player's frame for sure.