Well, After extensive testing of my Magguts (post below) I decided that when cleaning I would strip my slide. Been at least 2 years maybe longer. Yes, I spray brake clean in the hole every time. Well, I found that even with spraying in the hole there are places that do not get clean. When taking it apart the shaft that pushes on the extractor would not slide out. I had to fabricate a piece of wire to push it out. The extractor had built up black carbon where you can't brush it while assembled. The lakeline striker had a very thin film of black stain the cleaned off with a brass bore brush. There was not anything large in the striker channel. I used a brass bore brush on every part and each one had a little something to clean. I am not going to do this every time but I now think a 1 year rotation is reasonable. Dan