I have shot all 3 versions in the same arrow. I could never tell a difference in any of the 3, other than cost. For someone that worries about it, if you have to trim any off your arrows, take it from both ends. Usually, the slight bend is at the ends, rather than the middle. At least that's what an arrow manufacturer told me a few years ago. He said you could easily make a "6" into a "3" that way, or a "3" into a "1".
2006 Rytera Bullet X 60#---2008 Moab 70#
2008/12 Firecat 60#--- 2010 Warthog 70#
2010/2012 Alien X 65# 2011 Onzas 60 & 70#
2009 Warthog 70#---2009 Firehawk 70#
2010 Strother SR-71 65# & 2012 Strother Rush 65#
I hunt, therefore I eat. lol