Replying to Simple, yet innovative rail design.

so i decided to build another feature for my personal jib park. i felt like i needed something easy so i can work on some new tricks, but i couldnt just build a regular flat box. so i thought about it and came up with a new obstacle. i call it a runway box and if its been done i guess not...the box is slightly angled downward and is "tapered," its about a foot wide at the beginning and 2 feet wide at the end.looking down it, it kinda looks like a big runway. so anyways, this shit is pimp cuz you can spin on to a narrow box but then end up pressing out. has anyone else seen or heard of this?