Changing Color spaces smoothly

HI folks:

I constructed an effect in the effect engine -- the ultimate goal is to have a group of my led lights cycle from red to orange and back over about 4 minutes. I made it happen by using rgba intensity in the effect engine. I set red to full, green, and blue to off and put a sine table on amber intensity -- it works perfectly, except when i try to switch back to Hue/Saturation color for the rest of things. When i switch it, it seems to have a "jump cut" today i can cover it under a prayer, but i want to know how to do it properly. either by constructing the effect in Hue/Sat, or how to do the transition properly. For our easter service next week, i am planning a couple of similar effects, where i transition between colors in a cycle, i'll be putting lots of time on the board this week, but i think its gonna look cool

TIM
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