HUD controls are indeed at 0.
I'm aware that 16bit is more than 65k steps. I was just making a point.
And no, I haven't tried to replicate with manual controls. But I will take a screen shot and upload it so you can see what is happening.
I'm running m297 because Richard sent me that version this spring... As I understand it, the public release that followed m297 had significant changes to the FX designer, and as I had already programmed my show it didn't make sense to change versions.