Tornado (corkscrew)

This is one of my first coaster made in NL.
Made this coaster a few months ago and now posted it again, because it was lost when this site was off.

Here you can download http://www.weeweeslap.com/track_exchange/detail.asp?tid=11740

I hope to get some feedback so I can improve the ride. Already going to do the supports soon.

ps.
My name is Lennart Zuur and I'm from the Netherlands.