Ok Rob
During the cranking phase, the engine sometimes stalls the starter motor as if the spark has occurred far too early. Some times does it the once before the engine starts, other times maybe twice, and sometimes it just does this and the engine does not start.
It is almost like a backfire.
I never had this problem with 1.0.73 or 1.0.78, only with 1.1.44.
I also found I had lost 10 degrees on the 'trigger before tdc' value, even though nothing had physicaly changed on the engine. Perhaps this may have something to do with it.
The trigger set up is 36-1, 'trigger before TDC' is set to 54, tooth refference table set as 18-0-18-0 from top to bottom.
Infact I have just looked at a log that this problem happened on twice in a row before starting. The log clearly shows the rpm jump to almost 2800rpm and the spark jump from 10 to 33. The rpm and spark peaks are the exact same shape.