Octane levels

[LonestarROB]

Hey all, I asked this question to Jack but want to get others opinions as well.

I have an 08 F-150. Have been running 87 octane gas ever since I bought it(new). Got a Gryphon late last year with an 87 Performance tune. Its been nice. Now that the new CS is out(i gotta have the latest and greatest. ) I've ordered the Gryphon CS last week during PHP's sale. So I'm getting a "new" 87 Performance tune of coarse. But then I couldn't decide what to get with the free tune. Ended up going with a 91 Performance. Not sure that was the right choice or not.

I did a some researching online and most of what I read is that the higher the octane, doesn't mean "better". So with the 91 octane and Performance tune, I was hoping to get a lot better performance but, from what I've read doing research, is thats just a myth. And other then fixing "knocking" issues, theres no real advantage to the higher octanes.

So now i'm considering, if it's not too late, changing my free tune to a 87 Tow. I dont really ever tow, it's possible in the future but doubtful. And with no real gains from a higher octane, it doesn't really make sense to pay the extra for the gas.

Anyway, just would like to hear from others and what everyone's opinions are.

Thanks
Rob