Getting on rails is so satisfying because of its relative difficulty. For those struggling, experiment with different drop-in points, and holding pop longer, or shorter and approaching from different angles. Just like in real skiing....if any of us ever do that again (thanks, Malcolm...), you gotta pop, delay the 90 turn (especially true on urban on setups) until your tips clear the rail.
If you keep over shooting the rail and landing on the far side, try a shallower approach angle and/or try holding down speed/pop for less time and don't begin until you're a bit closer to the feature.
If you keep on bouncing off the near side, either go faster and pop higher, or try popping sooner and/or delaying the rotation on.