The stock bolt release was very hard to use so I decided to do the auto bolt release mod. However, after grinding and grinding on the bolt lock plate I realized that the problem is not with the shape of my grinding on the hole. Instead, the plate is getting sandwiched between the frame and the magazine latch plunger. This is keeping the auto bolt release mod from releasing properly. I tried lightly sanding the sides of the bolt lock that are rubbing the latch but there is still enough friction to keep it from auto releasing. Anyone else run into this problem and how did you solve it?