Jethro3-my bad, I was generalizing. Used that url to help folks see what others think. Not to many fans of anyone other than nelson here.
After looking at his website, I'll give nelson an A+ in the information dept., even if I don't understand what it all means.
I'm your "average joe" truck owner, wanting my truck to run like it actually had a 6.0 in it, and it does with the wait4me (extra 3mpg to boot). I have very little knowledge as to what parameters he changed. Until looking at nelsons website I didnt even know there were that many things
to change.
I read on a forum somewhere were someone (can't remember which tuner)actually rode with a guy and changed settings
while they were riding. Said he could feel a difference with each change. Now that I'd pay a premium for. Until then I'll just settle for my $157 "commoners" tune.
Bottom line IMHO, if your lookn for some specific preformance enhancing settings, check with them all till you get the answers you want no matter what the price.