I noticed a few days ago that my 14-12 slide didn't open alla the way. The cable pulled the slide all the way till it bottomed out and was still covering 1/3 of the throat ? So I made a few gaskets to see if I could get it 100% open. That was a no go as I would need about 4mm worth of gaskets. So i took it off went to the grinder and ground it down and smoothed it out little by little. Now it fully opens has better acceleration BUT now it pings at wide open? How do I correct it.