don't tune your edges.. if you sharpen them, you'll be more likely to catch on the rail (a common problem when you get new, sharp skis)
my guess is that you're keeping your chest facing down the hill. this will make it so that your front foot isn't actually putting any pressure on the side of the rail to get your spin going, and will eliminate your ability to get your whole body spinning at the same time. keep your shoulders square with your lower body and keep your weight distributed. you should be all good.
forgive me if I underestimated your prowess. not meaning to insult you