hi I have a cp88 which seems to like rws superdomes or the geko ,I had the problem of sticking pellets just a spot or two of power pelletlube helps (this stuff to me smells and looks like power steering fluid) ? just add to the tin or place a small amout in a plastic bag. I use just the smallest amount of copper grease just enough to cover a gnats bollocks on the inner spindle hole seems to work for me