I never liked finger picks, and 20 years ago I actually invented the 'Herco' style thumb pick, and even though it was better than a regular thumb pick, I couldn't get used to it either... I recently bought a couple of 'Herco' thumbpicks, and same deal--I can't get used to using them. They sort of lock you into one position and give you only one attack one the strings. :?
If I need a pick, I just use a heavy one, otherwise, its bare fingers..
John