I have gotten a 10.8 on a steel twister with the first 2 drops of 188 feet and it was 10,000 feet long. I have gotten a coaster of 11 inversions with an 9.5 intesity its a wild coaster and you can download it at
http://hometown.aol.com/bigdawg41286/index.com wich is my rct site i am workin on and is almost finished. I have gotten a coaster to go 5 hundred something miles an hour but it was with a trainer, and please visit my site i need some submissions for it