I have done this myself and not seen any issues.
Gas up here is now over $5/gallonwe have all felt the pain as the price at the pump has reached over $4 a gallon especially if we are running 91/93 octane tunes. Since gas has gotten retarded I have let of the pedal quite a bit and because of this am wondering if i should switch back to the 87 mileage tune on my superchips. Question is will switching back and forth between octanes like that even semi regularly cause any harm? I don't know if the engine being used to premium then getting regular will cause it to freak out and not run so hot.