The starter clutch could be slipping I suppose. I only replaced the starter itself.
It's a pretty big job but while I'm doing the clutch, I will have access to the Crank Trigger wheel, I could theoretically make changes to the trigger wheel at the same time if you think the ECU would prefer a different configuration.
Would 36 teeth none missing, or 36-4 be more reliable? I've got a spare trigger wheel I can modify.
I was reading an earlier post in this thread that 36 with none missing could be better because the ECU doesnt look for gaps? (which seems to be the root cause of the issue with this engine given the variable cranking speed)
I also noticed that blip on the scope, though it only happened once, will try cranking with the coils unplugged.