Jeff 97 Formula

I reinstalled Hypertech's "power tuning" even though I'm using E10 (10% ethanol) rated at 93 octane in my '97 LT1. The reason I did this is after researching all over the internet, not finding any claims that power tuning and E10 is a bad idea. I made 1 or 2 WOT runs (up to highway speeds), and did not notice any hesitation, knocking or pinging (not sure what to listen for). The car ran great, I assume the tuning is still safe.