If you send it to the CEO Thomas Fichter he will definitely respond, and in detail. I have had a great exchange with him (and Missy) about some hardware question. They are quick to respond and they do what they say. I cannot praise them enough. Here is his e-mail:
As for the full length step you want: one of the reasons (minor) I did not like the OEM running boards (or any for that matter) was how they scrape against leg when exiting. And thus, one of the great things about the n-fab nerf steps is that the step is exactly where you need it when climbing in, but, since it is only a step and not a full length thing, it is not in the way when you climb out, if like me you just put your left foot on ground when exiting and do not use the step. The step is nowhere near where your left foot goes when exiting and thus no scrape/interference. All minor points but they are factors.
Good luck with your search for what you seek. Thanks