Gryphon Performance Questions?

[2002Screw]

Hello: I'm looking for a programmer for my 2002 Ford F-150 Supercrew with the 5.4 engine. I have decided on the Gryphon, but I have a few questions for everyone.

First off, is the Gryphon Programmers canned tunes, created with more performance than the Edge Evolutions or are they the same in performance?

Everyone I have read post from are very happy with their custom tunes. Is there noticeable difference between them and the canned tunes on a stock equipped vehicle?

Has anyone had a 91 Octane Tow Custom tune made for their F-150, and if so were you happy with it?

I know I'm going to buy a Gryphon, just don't know if I need the custom tunes. Any input would be greatly appreciated.

Thank For Your Time

Sam