How is APR tricky? They are one of the most well know and reliable chips. As for boost disappearing, care to be a bit more specific. If your referring to surging, that depends on the car not the chip. You can find various cases from customers of all chip makers in regards to surging.

As for Suncoast talking to GIAC daily, and representive can do that. The reps request the software and GIAC(and most other manufacturers) email it to them. How is Suncoast exclusive to GIAC if FixxTuning also does their chips in-house?