im not a big fan of flipping off rails , its kind of yahoo style but its a easy thing to do . its just a huck . just make sure you get a good solid pop and set the trick hard cause you dont have a jump to help you out and get some hang time. you basically need to do your flip on a 7 foot drop . always keep your shoulders looking at the end of the rail for a back flip or front flip out . front flip out are a little easier and less scary ...
just dont try it on a cold icy day ,wait for some sun and soft landing ...