ok i can not figure why or how this happening and my girlfreind and i are shooting in a 3d comp this weekend.

here is the problem, she bought a bow in aberta got it all sighted in and she was shooting bang on.
we get back to bc and everything is way out of wack and we took good care of the bows so they would not get smashed around. mine shoots fine but hers is all over the place. we tryied to resight it in but still there is no consistancy in her shots and i've watched her shoot and she hasn't changed since alberta.

well guys and galls i'm at my wits end, any tips or advice would be great
thanx