Unfortunately I don't have any equipment to cut the ends off screws, and I also have had trouble finding any screws with a shorter length but same diameter that will fit into the RediDriva base.
I need to fix various things to my plasterboard stud walls, so I bought some 35mm RediDrivas. The first thing I notice is that the actual screws they come with only go in so far. They stick out about 15mm or something when fully screwed in. Most of the fixings for things that get screwed to the wall...