Try coming at the rail at a little more of an angle and keeping it straight just has to do with balance. Practice shorter length grinds first and then once you’ve master a short length 50–50 move on to doing full rails
Do it at the fastest speed possible while excitedly firing two handguns straight into the air. For best results, set up a high definition camcorder on a tripod and have a friend simultaneously attempt to throw a large meat lovers pizza onto you head like a crown.