My bow was set at 55# and I cranked it up to 60# yesterday and it started shooting like it was out of tune. Like my arrows were fishtailing and stuff.

Is this because of the change or is my bow out of tune??

It was tuned and shooting strait when is was at 55#

Since you cranked it up to more weight,your arrows are probably too weak in spine now

I was thinking that also.

Hard to tell for sure without knowing your setup, but its a good bet that your arrows are underspined now.

Thats what it sounds like to me to. back it back down and see if it starts shooting good again.

did you put equal turns on the bolts, if not that is the problem

Make sure your rest is straight, make sure you nock point hasnt moved... Check and make sure your arrows are spined correctly.....

Yep, you could have changed your nocking point when adjusting your draw weight.

Paul

spine, timing, or knock could be any of the three. Spine should be easy to figure out. Put a lighter field tip on and see if it gets better. Good luck!