Hey man! I thought this looked familiar ...
I must confess that I bought it used, so I wasn't involved in the initial build/ordering, but here's how I figured it:
The standard trem lune has the smoothness, speed, symmetry, depth, spacing, and gain knobs. There are extra speed, smoothness and depth knobs for the second LFO. And yeah, you had it right regarding the fine-tuning knob, the flip switch and the exp inputs IIRC.