Bit of a mixed bag here - I really enjoyed your ingenuity to create a dual shuttle lauch coaster beign fed from one station. It was really interesting (perhaps entrancing!) to watch the switch tracks operate as they did to load the trains in and out of the ride.
My main gripe was that there wasn't really much to the ride beyond this clever interaction - it would've been great to have some interaction between teh two tracks os you might get an uactual dualing track.
My other suggestion would be that this idea would bne wholly inefficient in real life - the amount of blocks that the ride op would have to keep an eye in would be insane. I think a modified method of that used on Premier Sky Rocket II's such as the Zombie Ride or the Mr Freeze iterations at Six Flags would eb a far better solution.
This is a cool example for scripting. nice work, its fun to watch the train or ride them. The tracklayout is well done. by the way, a +1 for the colorconcept