Would love to see a zoom into just the 3rd gear section. The aggressive maps are different, they allow for more boost and timing in the mid-rpm range. I have been running a PPS meth kit for a couple of years. Currently running a 12 gallon per hour nozzle. I always run a high % of meth, even 100%. I always run the meth as secondary octane (to pump 93octane) and charge air cooling. I would bet those timing dips would disappear with meth. Maybe not something you are interested in? I run about 18.5 PSI in the mid-range that comes down to high 16, low 17 around 6700 rpm.
Maybe attach a screen print of your user settings?