I have a set and like them, but I haven't tried them at low air yet. They make a 35 that is normal and a 35 that is actually 35", so it's like a compromise between a radial 35 and a radial 37.
I had great experience with their service. I ordered and they shipped the next day. My spare had a leak and when I called, they shipped out a new one the same day, no questions asked.
I have some pictures of some different ones I've been meaning to post, but I haven't gotten to it yet. There have been several posts about these guys, though. They make their tires on various brands of carcasses, though. You can request which ones you get, although that could delay the order.