I'm not sure what you mean quoting what I said but as far as running a PDR 40 on my tow truck it does fine. If I had my way I'd have twins on it as well but Dave M wanted me to try this charger and also with two trucks I'd rather put my money into my puller. The reason I went with the PDR 40 is b/c it's deffinately stronger than a stock 40 and for towing a trailor with big injectors and a Comp an HX 35 just doenst work for me. I guess you could say it was my best bang for the buck, and Piers is very well reputable so why not try it.