Tow Tune Questions

[cbvanb]

Hey all, brand new member here with a question I couldn't answer with "search".
I'm running an '07 F-150 screw, 5.4 Triton Fx4 completely stock. I just bought an Edge Evolution for the towing tune, due to having purchased a new travel trailer.
My questions are: Will a Gryphon 87 octane tow tune give me any advantages over and above the Edge canned 87 octane tow tune?
And, how much performance difference can I expect with a 91-93 octane towing tune over and above the 87 octane? These mountains out here are killing me!