i have a 32 cal percussion muzzle loader with a flash cup installed.is it necessary to remove nipple and flash cup every time i clean? i use the toilet bowl every time i clean, so the nipple and cup are immersed in water. a quick flush and new clean water. i don't want to risk screwing up the nipple threads every time i clean. i have tied an old toothbrush to clean inside the cup. seems to get most of the crud.any thoughts or ideas?