I get the part. I put it in. I test it, and the striker (that's Austrian for firing pin) releases, just like it oughta. First try, no filin' no nuttin'. But the slide cycles rough. Rougher than rough. Nasty. The instructions (I know, I know) say in this case, you shorten the stop. I did, and now, while there is noticeably more travel, movement of the slide has not gotten better. At this point, the travel is not much better than my new, stock G27. Any more, and I'm afraid I'll have to take ghost rocket up on their I-screwed-up offer. GR is closed today, so no help there until Monday. I know singlestank did a successful install, but if anybody else (CGR?) has some ideas, help a brother out.