I know I'm probbably not the only one that knows this but....
Block brakes can be used as boosters!
set the block brake to go faster than the train will be traveling at and...
the train will boost to that speed!!!










(offtopic, I made a Rct3 Coaster with an ex. of over 11)

that's what i use for launched coasters, and i think it's fixed in soaked

Its not a bug. If you can believe it, they did this on purpose with RCT3. Supposedly the people asked for it. It was probably that the people were asking for the boosters to be back, & they took the easy way out & used the block brakes to do this. I'm not a fan of this idea, but whatever.

Here's another one
build any coaster (Rct3) on Continuous circut
2 laps
make sure the train can't get to the top of the hill
the train will come backwards ignoring the lift hill(if this doesn't work, you need Rct3 latest patch w/o addons)
when the train gets to the station, it will be boosted to an extreme speed
heres a track that will show it