When i installed those, I couldn't set up properly my snare for weeks. No matter what I did (tuning, muffling, trying tricks like detune snare bed screws etc) I got excessive buzz and the snares sound was flabby, unless you overtight them. You could hear the snares hit the head right after the batter head sound.
I had to over-tighten the batter head, and I also had to over muffle the reso head with lots of tape, and i also had to overtighten the snares, to get a sound and feel that is just "ok".
The quality seems to be very good, and the fact that you can remove them and reinstall them in 30 seconds is something i liked a lot.
