Just buy a box of Magic Eraser, from Mr. Clean. do not use goo or gum or anything.
If anyone wants my Extreme Phono gel, its yours. a $4 box of Magic Eraser will last me about 40 years.
a few simple dips into it, then a quick brush. there's nothing better, you just have to be careful.
lots of cool close up photos of sparkling clean diamonds on Vinyl Asylum.