After looking at some files and also datalogs, I am finding that Joe, just like Ed, has high timing error.
Both are using Rising edge ignition input capture and using some trigger angle offset like 75 degrees. Nathan Wilbur was using 64 degrees, "rising edge" but he posted no datalogs.
Joe had -12.7% to 12.7% error during an actual pull and his error is less during cruising (about half). The error constantly goes up and down extreme to extreme almost like each ignition event is 12-24% different from the one before it as far as actual timing....
My timing error is about 3% to -2.9% at most during pulls. My error also spends most of its time at less then those peak errors and during shift or decell is slightly more erratic (not really important).
I was using falling edge and much lower timing error but my car is unhappy after sitting so I have been looking at others files including Joe's very recent stuff to make sure I didn't mess more things up in my tune when it got corrupted.
I don't understand the reasoning behind rising edge use or how people are deciding to set it up. I just set falling edge and did nothing else per DIY forever ago. Never thought about it.
I did try checking my timing with a light just using the starter to bump it over. it bounced around a bit but I got it down to around 12 degrees with manual adjustment. I did not disconnect any sensors. I don't know what that represents with MSII Extra when the engine is not running!!!!