You guys should have a contest with prizes for having the alpha testers design coasters. If they have good statistics, have them included in the official release of the game, with props to the creators of those coasters.

The coasters in build 1 would kill the riders if they were in real life.

The best coasters:

1. Have high excitement, safety etc, medium to low intensity.
2. Small footprint.
3. Short-sih ride times to generate more money per hour.