I also have the swallowing problem, it's just that I can clear my mind and resist the swallowing for the first little while, but as soon as I start to feel the wave all my attention starts focusing on not swallowing, which has resulted in me swallowing every single time.

so far my fail record is 100% and I've tried over 40 times. I just can't clear my mind to the point where I can resist thinking about it. hmmm i wonder...is there a way for the body to experience the wave without you actually "feeling" it?