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 I just recently purchased a ball a couple of weeks back.  Havent gotten a chance to even throw a full set with it but anyway. The first frame I use the ball the ball gets hung in a machine.  Causes the ball the have almost a u shape right in the middle of the track.  Not a gouge but like a severe burn.  We tried to sand the spot out and thought it would work.  However, know when I roll the ball (granted nothing has changed) the ball hopes down the lane like I have rolled it on the thumbhole and instead of turning right(i am lefthanded) the ball will now roll to the the left a little bit.  

what should i do? any suggestions