This is to pick up on multiple threads that have described solutions for Axle slip and drift - I have had much success with Washers, Resurfacing the drop out, and Chain Tensioners - My best success was with a chain tensioner but I did not like the bulk - I don't change out my tires or wheels once I get them set so what I really needed was just a simple clip (I know someone used to make these) to hold the axle in place - It was very easy to make one from 3/4"x1/16" aluminum stock...

I tested the setup by only applying the QR lightly and took the bike out for a ride and no slip what so ever - I don't think this would be a good set up for some one who changes wheels from bike to bike because the drilled hole is set for only one dimension - But it is very easy to just make another if I need to... (For looks I could also mount it on the inside of the drop out)

RearWhelClp.jpg