Caulk for fender skirts

I need to re-caulk my fender skirts. The screws backed out alittle and made them loose enough to break the caulk seal. I need BLACK.
My choices seem to be:
ProflexRV-
Sikaflex 221
Dicor window and door

I hate to have to buy the big 10oz. tube but it looks like non of them come in a smaller size.
Any recommendations??