Andy, get yourself a rectangular piece of steel, wrap it in 600 grit sandpaper and lock it in a vise. Then, without marring the finish on the top of the slide just gently run the slide rails back and fourth over the sandpaper. This will prevent you from getting lots of high and low spots like you will grinding with a dremmel by hand and leave a nice smooth finish on the slide rails. The dremmel is best used with rubber polishing points to finish polishing surfaces such as barrel ramps. However, if everything is working now you may not want to take any more mettle off the kadet slide. Sounds like your slide to frame fit may have been the problem. mapdude