I wouldn't consider it sinful. I have Aquarians over Remos on my kit right now :) Remo's Ambassador X is the equivalent of a G12/G+ in thickness but there's no clear version, apparently they "didn't pass [Remo's] standards of quality..."
. A G12 might be good but you might also consider a Diplomat. They are thinner heads and don't sustain for as long as an Ambassador but since they are thinner they have a naturally lower pitch, just like cymbals. I'm sure the Suede Emperors are great heads as well.