Do you think Mike at 5 Star Tuning would be up for a Google Teams conference call for the Forum? Might save him some time on the phone. Since I installed a KC stage 1.0 turbo last spring I've been looking for some optimizing beyond the stock tune as there seems to be a noticeable difference between it and the original Garret turbo. Anyway, I've been thinking of talking to 5 star in the near future as well.
ucsundog, just want to agree with the others that the temps you report are well within what is considered normal. That doesn't mean the temps are ideal, or to your liking, just normal. You are probably also aware that EGT temps can vary widely based on where the temp is measured. Internet posts will claim their EGTs are low but they are measuring it post turbo vs in the exhaust manifold. Just be aware of where someone else is measuring vs where you are measuring.
Here is a link to a post a few years back on 6.0 normal temps as a reference.