wasted spark with 6 cyl means 3 dual transformers (often written as 3x2)
Using 6 BMW COPs without camsync is NOT recommended (because it wears sparkplugs, overheats parts easier, etc...) but supported through "ign_dualout". Make sure the outputs you fire at the same time are "neighbors" (like ignch3 and ignch2), see GenBoard/Manual/DigitalOut/Table
- it is also possible to drive 2 coils with same output, if it's logiclevel coil driven by stepper output
- driving 2 power-input coil from 1 IGBT involves high risk to overload and burn the IGBT (even with very careful dwell adjustment!)
- 8000 RPM means with 7.5ms (crankrot=) window (appr 7msec available for dwell, MUUUUCH more than needed), possible with current firmware (use 1.1.x and use ign_dwell6=0)