Oops - my mistake
Here's the set up - I'm using MS to control both fuel & ignition. MS directly controls 6 ignition drivers (dwell & when to fire) directly; driving 6 coils to support my twn plug set up.
MS can only support wasted spark. And I'm using Mitsubishi/Diamond coils. According to spec I got, running dwell should be ~4.0ms.
The RPM trigger is via VR sensor mounted to the crank pulley.