I'm going to post a How-To thread on lapping in your 1911 slide. Some members have had some issues and I had a baptism of fire getting my SS XSE Government to cycle properly with the 460 Rowland kit installed so I thought I'd share my experience. This project is a rather simple DIY project and on a required skillz scale of 1-10 you will need to be a 5. (And no Ineffable, I don't need to say which end of the scale is low!) The equipment you will need to perform this operation, besides your standard 1911 strip-down tools, are: Lapping compound and I suggest the Wheeler Engineering Lapping Compound Kit $ON SALE$ here > Wheeler Engineering Lapping Compound Kit (1 oz each of 220, 320, 600 Grit Compound) - MidwayUSA You will also need a small art/flux brush to spread the compound in the lands and groves of your slide. Some good dish soap like Dawn. A scrub brush that will fit in the lands and grooves of the slide. Have at least one can of Brakeclean, maybe two. I can never have too many cans lying around for gun cleaning. A 5 gallon pickle bucket or something similar to wash the lapped parts between grits. Have plenty of shop towels and shop air (compressed air) to blow out dirt and dry the parts. A can of computer dust-off works just as good. Q-tips are a must! Best thing to clean the firing pin and extractor channels. Lapping compound Compound brush Dish soap Scrub brush Brakeclean Q-Tips Shop/compressed air Shop towels Bucket Whatever CLP you use Plenty of elbow grease I’m going to re-lap the Colt and take photos for this demonstration. Hang in there; I'm a retired engineer so sometimes I go a tad fast. If that happens just let me know.