i have always wanted to build one upnorth in michigan but it seems like there are way too many trees and underbrush for it to work...plus the hills dont seem steep enough or long enough for a legit landing. One day i want to do it though.
we built this one a couple years ago. it's basically a large step down with a mega steep landing that's why the lip doesn't look like it has much pop if any. look for sand pits, you can use the speed grade as a landing. the only problem is getting enough speed before the take off.