As they say, YMMV, but I've had great service out of the Dimension Edge rack mounts, even put a couple on for other people who love them. They do use wooden rollers of various sizes (as well as polyvinyl and stone aggregate) but the wood rollers work very well. Wear fast? not really, I get hundreds of miles from them. Nothing fancy in wood is necessary either, they are a consumable but all rollers wear down as well. The great thing is with a stick of lumber and a hole saw I can make replacements for pennies. One attribute of wood I really like it it doesn't conduct anywhere near the amount of heat to bearings and engine crank that steel does, especially when used on hot summer roads.
This won't help the OP's question but the DE system uses compression with a threaded shafted and lock nut on one end, hence the quick change aspect, takes 2 minutes and one wrench. I can't say what the best way to lock down a wood roller on the slick 1/2" shaft like bmp used but maybe using some kind of spring on each side between the shaft collars and roller would suffice?