the only difference is a few cosmetic changes to the riser ! limbs & cams are the same. the xt might have hybrex cams but they are the same as the nitro. really the big change for me was the price, the xt is $200.00
more than the onza 3 was from the same guy. i wouldn't mind having an alien xt but i will pass for now & shoot my onza !
2009 alien x camo, 09 x all black , 2010 x carbon fiber
2010 nemesis camo, 2011 nemesis carbon fiber,
2010 onza 3 camo,
2010 pearson legend black riser camo limbs