Have the url of the other thread handy?
What this guy said. I have both and had the pedalmax before and after the Lund tune. Lund told me not to run it with they're tune because I would not need it and it might not "mesh" well with the tune. I took off the pedalmax when I loaded the tune and I was disappointed with the loss in response. Maybe the Lund tune was better then stock but not even close to how the pedalmax feels. The pedalmax manipulates the response differently then a tune. It is a very aggressive ramp up of throttle (1/2 throttle is like wide open) but it works very well and everyone who has tried it likes it. I put it back on and have never had any problem with my tune and I am back to loving the response.I have a Lund tune and also Jms pedalmax. I noticed a difference when I got the tune. Even more of a difference when I added pedalmax. And even better in track or sport mode.
Also. Don't bother spending money on the pedalmax knob. You will never want less than 100% once you drive it. If you wanted to you could always disconnect it completely. It's something you will unfortunately get used to tho.