HANG ON, HOLD THE PHONE, WAIT JUST A ******* SECOND!!!
There's something grossly wrong here.
They took it to the dyno and could only make 10 OR 24psi? That's complete bullshit! ANYBODY, WHAT WOULD BE THE FIRST THING YOU'D DO IF YOU SUSPECTED A BAD BOOST CONTROLLER? Funny, first thing I'd do would be to take it out of the equation for a couple runs, and tune the thing wastegate only and see where we stood. 15psi on a 16g built motor w/Link and 550's should lay down in the 260whp range. As Brainkeak said, the 225whp@10psi sounds about right. But, I'm not sure how they're making 10psi with an MBC on a 15psi wastegate spring.
It's not possible that a decent speed-shop wouldn't be able to diagnose a bad manual boost controller. The shop has however figured out that you don't know **** and will continue to pay as long as they tell you to because you've got no choice. The fact that you're not even around to watch them work and tune just makes it easier for them. "Best shop on East Coast" my ***. Who told you that? Is this the place: http://rpmnyc.com/
I see nothing on that website except Hondas.
You need to get that car out of there and take it someplace else. Cut your losses and run. Go pick it up, disconnect the wastegate rod, and drive it home unboosted. Somebody on this forum might be able to help you out with a place close-by that's got a clue. Or, call FM and have them recommend a shop to you. Then see if FM will call the shop for you and set up an appointment or at least talk to the shop-owner and lend some credibility to your name. I assume you've got a butt-ton of money for this whole thing, just no time to do it yourself. Get it away from RPM and into the hands of someone else, with an in-house dyno, and who knows more than just Hondas.