So, I've ridden a few pump tracks in my day. They all seem to be really made for bmx bikes, but plenty rideable on mtb hardtails, and at best, slightly painful on a DH bike. I'm thinking, why not build a pump track DESIGNED for DH bikes (or big MTB's at the very least) on my yard. Bigger features, larger radius berms, and most of all, rocks. Rocks on the rollers, rocks in the berms, etc. Anyone every built/seen something like this? The closest thing I've ever seen to a mtb pump track is Weir's. Ray's ain't bad, but still completely smooth. Any thoughts? Is this retarded? Is hoping to pump a DH bike through flat berms and rock gardens hopeless? I can't think of anything that would be better for general DH fitness.