The only thing ou have changed is the string? What about the cable? Who did the work? Is the nocking point (loop) in the same place as it was or don't you know?

What length are your arrows? The 4560 designation means that's the weight range (45# to 60#) that they are designed for--at a given length. You're shooting 62#. If the arrows are underspined then you can't make any adjustments that will help except maybe take a turn or two off the limbs.That would account for a vertical tear that can't be adjusted out by moving the nocking point. Maybe it's not the problem, but it's a place to start.