Groove Juice is excellent. I used to use Blue Magic Metal cleaner which is completely non abrasive but I was losing 15lbs everytime I cleaned my cymbals!!

Way too much work, but they were like new. Then I here of this stuff called Groove Juice. I bought a bottle of it, and to my surprise ( and relief) it worked great!!! Just spray it on let it sit for a couple of minutes and 30 years of crud will rinse right off a quality vintage cymbal!! Then I go over them with a car polish .... not a wax.... there is a difference. That polish seems to make it harder to leave finger prints and keeps them shiny for quite awhile. Next time you go to clean your cymbals, give it a shot. It's about $10 for a bottle. Oh by the way ..... DO NOT USE THIS ON CHEAP CYMBALS!!!!!! NOT GOOD!!!!