blindside switchup- get onto the rail 90, ride until you want to do the switchup. when its time to do the switchup look over your shoulder in the direction you want to turn. while doing this try to pop or atleast take your weight off the rail while turning, this will prevent you from catching your tips.
270 off down rail- get onto the rail 90, try as hard as you can to hve most of your weight on your back foot withough leaning too far back that you will slip. while doing this you want to lock in on your front foot putting as much pressure as you can against the rail. when you reach the last foot or so of the rail you want to push off your front foot causing you to spin but make sure as you are doing this you quickly lift your back tip of your front ski up and you should be able to spin off the rail and land switch.