cymbal cleaning

Hi everyone, I recently cleaned most of my cymbals, among them a 20" round-logo Paiste Sound Formula Full Ride, the second I owned. When I got the one I currently play I thought it didn't sound quite as good as the previous one, and also didn't look exactly the same: it was a bit shinier, and...

I've never boughten cymbol polish and i was just wondering what's the best polish to get and if there's and specail technique to use when polishing it. Thanks.