With the sky surfer V you only have to machine off a few mm's of aluminium to get a tight fit into the small recessed part at the top of the handle, you can then get 1 screw in (buy a 16mm screw so it penetrates deeply into the threaded part of the handle)
Hacksaw, metal file, 10 minutes and it is done.
If you get a nice cut across with the hacksaw for the recessed part that is nice and straight, and a tight fit, the finder will not be able to twist round, even if the screw isn't done up tight. Mine is only finger tight for easy removal/refit, and it does not budge when using!
Also painted the underside of the mount with thick rubberised paint (stonechip protector) to isolate the base from the paint coating to prevent damage, with the added bonus of additional grip between the surfaces to prevent turning or twisting.
Edited by RickyD85, 16 June 2018 - 08:24 AM.