I am a member of the excessive sweaty hand while biking club. For me, it is mainly from my hands themselves and not just a rundown so bands are out. With or without gloves varies slightly in amount but I end up wearing them to at least get better overall grip. This is after a ride last summer with fingerless gloves. Waterlogged wrinkled prunes. In the perfect world I'd wear full gloves for protection when offroad but that is just too much so I still use fingerless.