Kansas Disc Golf Association

I have 2 avengers (x) I've been throwing for a little while now... they're both kinda beat after colliding with a number of trees...

the 169 gram one throws sweet.. straight line then curves overstable. however, the 174 gram one has been getting more and more understable and always spins out understable at the end.

Is this more likely because of the way they are beat or do different weights sometimes throw more/less stable?

Heavier weights are usually more overstable than lighter weights, so you probably beat it up more than the other one.