Problems with Hallman Pro MBC

[B-Man]

Purchased a Hallman Pro MBC from STM during their Xmas sale last year. Installed it in March when the weather was warming up. It ran great for awhile but slowly I kept getting less and less boost at the same setting.

Ok, I figure springs are breaking in. I kept turning it (in the direction labeled on the controller for more boost) and I don't get any more boost. NG comes around and turns out I'm only running 12psi. By the time I leave NG I'm running 10psi and have been giving it a half a turn (maybe a little more) when I leave for work and on my way back. So that's 2.5 turns a week and no change.

Tonight, I just unplugged my pressure source to my wastegate and ran it while closely monitoring my boost. Easily makes it to 16psi.

Is there a stop when it's all the way in? Is my hallman bad already? Is there any warranty on these?