I've ran 94 octane fuel and a canned Diablo (Trinity) 93 tune for daily driving /weekend racing almost since new in 2010.
Data-Logging has never indicated any LT Knock retard, and less than 0.5 degrees ST Knk RT.
(BTW...for Data logging NOTHING can come close to Diablo)
I've owned a Superchips Cortex and a Bully Dog GT, (both sold)
But Diablosport was the only one to get my heavy 4x4 into the 13's at over 2500' DA
(10' RCSB 4x4 3.55's with intake/exhaust/drag radials and tune)