How to choose custom tunes.

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How did yall choose what tunes to get? What did you get?

Right now I have an Edge that I'm upgrading to a Gryphon. I currently run the 91 Performance canned tune. I use 93 octane gas.

Performance:
Would a 91 CUSTOM performance tune be better than say an 87 CUSTOM performance tune? Noticable difference?

Economy:
What would be the most effecient? A 91 CUSTOM Economy tune, or a 87 CUSTOM Economy tune?

I prefer to have a CUSTOM Performance tune. That being said, how effecient is that tune compared to a CUSTOM Economy tune?

Any help?

I have a CAI I'm gonna install next week. I want good power, but I do drive my truck alot, so good fuel effeciency would be nice.