By acquiescing to your SpotOps, you negated the need to run the intensity via the board. You KNOW how I would have handled them.
By the way, that Lycian Model# 1206 (?) doesn't come from the factory with an isolated lamp, and has fan-cooling. You DID modify it so the dimmer was controlling the lamp only and had the remainder plugged into constant power, correct? If not, I'll have to crosspost this in the "what's wrong in these pictures" thread!