To answer some comments, Thanks for the advice. I made an inside carry holster the other day. I used the method of putting the machine in Rev while the needle was on the up stroke, but still in the leather piece. It did result in a much cleaner stitch. I'll continue to use this procedure. On the comment of using a lighter thread on the bobbin, seems like a good method. I've heard of that before. Might be a time to change. The Tension procedure seems like it would work, because the loops were always on the bottom piece. Will give that one a try. Again Thanks for the advice. ( I'll attach pics next time, Like they say, Pics or it didn't happen.)