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[Kerinator]

I am interested in buying a Spartan tuning device for my 09 F350. I regularly tow 10,000lbs in hilly terrain. I notice they have a wide variety of hp levels. Is there a description of what each tune does and what they are designed for? How do you decide which one to use? I'm not into drag racing, just economy and towing. I've tried emailing Spartan at the address on their web site with these questions but their email just bounces back "5.1.0 - Unknown address error 550-'5.7.1 Mail from 64.59.134.9 rejected; by cwm dnsbl'"

Thanks
Kerry