Well just thought I'd mention that having had it sat around since 2008, I've finally sorted the snare wires on my COB Dyna and took it out for the first gig last night.
The gig was a sort of Bop gig. Violin, Trumpet, Elec Piano and upright Bass. A small intimate ticketed crowd so they were up close and listening, not chatting and drinking. I really had to hang on to my poop. Some serious pianissimo up temp swing with occasional upward dynamics just at the right time. Some snare off work, using hands for a old time beguine feel and some brushes.
Well I'm very impressed, It went with me each way. Super quiet and those snares just stayed present. Like silk really. Buzz rolls where easy. Up the dynamics and it really opened up. I got some lovely lively rim shot clangs when I needed the colour, yet I could dry the sound right out back into the middle of the drum. You really need to have precise technique with this drum, especially at the lower dynamics as it really tracks every stroke you make. No getting away with it with this one.
The snare mech seemed to hold, and I could manipulate the snares easily from tune to tune just as I can on say a 400, by slightly adjusting the snare mech.
I can see that fair-weather drum hobbyist would be perplexed at this instrument. You need to give it time and really have a boatload of experience to draw this drum out, and as I said a stable hand technique. I can see why most would prefer the strap up and tighten till desired approach. But since I've sat down with this drum, it's now a very welcomed member of my snare stable.
Thought I'd share that.