nobody is always as good doing rails left and right, of course some can do it likes it nothing but the natural foot forward will always be easier.
You can try
-just hitting rails left foot forward for a day, (this really helped me get as comfortable as possible)
-spinning un-naturally; if you spin to your right and 270 you will have your right foot forward. pretty sure this is considered a blind 270 on or un-natural 270 on.
either things will hep with progression and becoming comfortable and you can work up to a proper 270 on.
If you need anything else you can ask in here or PM me.