FWombat , Great Job!
i just got to try it on an internal log i had
i think it works great , and shows me there is a lot of room for some more ignition!
this is my graph, (jumpy , needs more tune

)

btw , this is the log file + the math file.
i would appreciate if you could check out my files ,if it needs a smooth or something in the .mth
Thnx alot!