Agree with everything above. bigbulls is spot-on... Had a friend of mine who's a pretty big name in the hunting world change sponsorships to Mathews. He couldn't understand why he needed to go 1/2" shorter on his draw length... LOL
I've got a 340 and absolutely LOVE it... with another customized 340 on the way. My first one IBO'd out at 338 with a 7" brace height... I simply don't see the need to have any more speed than that.
To me, it's the best of both worlds: incredible speed (at least "I" think 338 is pretty incredible...
) AND forgiveness and shootability.