Should I get a 91 tow tune?

[hpdiniz]

Very cool!! thanks to both of you for the response and the real real world towing experience.

Since the 91 tow tune does not make sense, I'll opt for an 87 tow and 87 performance tune.

I wish I had made it a priority to weigh the trailer but will be sure to include the max weight even though I don't plan to ever load it to the limit. I'm fairly sure it weighs about 5K ready to camp.

Jack, I have friends in the Grass valley area and it is one of the best areas in California. I wish I could live there but I chose engineering and now I'm kind of stuck in the Silicon Valley area, where traffic is bad and housing worse.

OK one last question, at least for now, I was looking at the order forms and need some clarification, I see order forms for a 2004-2008 F-150 Evolution
and 1997-2011 F-150 CS & CTS. I'm not sure which to use since I have a Gryphon. My original order form for the unit says "Gryphon Programer 2005-2008 F150" Item number GPFG150-0408. Please let me know which form to use.

Thanks...