Hey! Thanks for the answer!What the producer says should be considered as an advice only! You can think about it, but the decision is yours! In my opinion, the final word should be yours every time. I would never allow anyone to force me to do something I'm not comfortable with, but If what he/she says sounds reasonable/logical/etc, you can change your mind. But "just because" the producer wants you to, because he wants more overtones, my answer would be: sorry, but no!
Yes, I'm off to say "no - give me other cymbals then"..
But I'm playing for a guy.. So the song is not for me. But in my opinion: If he doesn't like my sound or my cymbals he can give me other cymbals or take another drummer
btw: I wanted to know if gavin cleans his cymbals in purpose to get more overtones, not because they look better then..