How easy or difficult are these things to fit (and setup correctly) - I`m no Griff but not completely useless either, just average joe. Just bought Delkevic titanium slip-ons (with EvoTech hangers and tail tidy) and now thinking about adding a Commander :devious - the missus is already going to ballistic when she see the credit card bill so I might aswell go the whole hog :thumbup