If you feel like your head is filling up and about to explode then you are doing it wrong 100%.
You are not compressing the carotid arteries(deeper in neck) but you are compressing the jugulars. (Easier to compress)
What you have to do in that case is to apply A LOT MORE prressure and apply it faster. So instead of leaning into the rope try pulling hard and letting go of your body.
Then work from there. I know since I don't get that pressure feeling and if I do. I take break, try again but press harder and it is gone.
My problem was that the SWALLOWING FEELING sucks.
Anyone know how to get rid of the uncontrollable urge to swallow even when there is no saliva in my mouth?