Oh Geez. I can't remember how the JB4 parameters go, they are so weird to me. Trims start dropping and so does FP_H, so my first though (might be way wrong) is that you are asking for less fuel in the upper end. My experience has been the hpfp gets taxed the most mid range, not at the top end of gear. Maybe someone else more intimate with JB4 logging can help. Also, I've found the settings on the JB4 side make a huge difference as they are inline hijacking the signals to fuel rail and MAF.I uploaded a log to Datazap (in case that's what you meant, if not I can upload it somewhere else). Any feedback would be appreciated. I'm also going to try to make the contact you sent me, hopefully today.