Complete timing tuning is best done on a Dyno, yes.
In my personal opinion I would just up the load in the last 2 load rows/columns
and adjust the timing so there is no knock present when doing a WOT run.
Hmm... alright. I have an idea. I can up the last two load columns exactly as it is in the S3 file (S3 file covers up to 185 Load), and do some cheating by entering the timing values that are in the S3 file, and use those timing values as a "starting point", rather than just adding best-guess timing values. What do you think?
Also, my LDRXN profile maxes out at 165% Load, so boost levels will not be that high, and I have maybe a little room for error in timing. Anyhow, I just compared the timing tables, and at 150 Load the S3 has 18* BTDC (cant remember RPM) while the 150hp file is still at 12.5-14* BTDC at the same RPM point; that is a huge difference thats why I am a bit concerned in using S3 values, maybe copy paste them and tune them DOWN a bit. Some advice?