Ultimately, I would like percentage of slip, but since I most likely will not get that, I am looking for any and all opinions of aftermarket converters so I can make a somewhat educated purchase. I don't know why but there is not a lot of info or even opinions of convertors out there. The day I started to make a thread asking about converters is the day I saw that he just installed the AFE, so I asked his opinion which he said wouldn't be true test until he put more miles on it. In my limited research, AFE was only company to have very detailed brochure. I liked what I read but wasn't sure if they were just utilizing a large marketing budget or if it truly is a quality piece that will stand up to abuse in my truck. No reason to justify why I asked him for his opinion, but thanks for your interest.