The whole tarp idea... I've used it before, and he just went, "Ooookay, flappy, noisy sheet, no biggie. My momma's nuts." =]
He's pretty un-flappable as far as jumps and things go. I've ridden him down a local "Main Street" type of road, gravel trucks, motorcycles, cars, trucks, bikes, you name it, and he's as steady as they come. =] Frankly, I get more scared than he does!
I'm still getting around to building things- been a crammed week!
QH- let me know when, and I'll brush the snow off of them. The footing is good, and not slick at all. If you'd like to, we could potentially set up a time to build some stuff together, over Christmas break or whenever, if you'd like to walk the course and help out designing it, up to you. =]