DOUBLE PEG
This s were it gets a little bit harder. You need to find a place were you have a lot of space.Now if you've been just riding up to the ledge.Its time to get serious.Your actually going to need to bunnyhop for this.Try bunnyhopping then doing feebles.After you get those down .
start twisting your body till you can get the bike to jerk over the ledge.
After you can do this just start laying the pegs on the wall and remember for longest grinds I think it helps to tilt the bike into the grind to help from slipping off.Get this dialed and your on your way to smiths and maybe icepicks........................Flengy