if you have only shot 150 times you shouldn't have any wear at all . i've shot hundred s of times maybe thousands without any significant wear. you could have a burr on your draw length mod. or something like that. it happened to me , we changed the mod. and reserved the string that fix that problem. let your dealer take a look at the bow. good luck
cutis
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