i dont neccasarily do spinal breathing as described here, : breath up the spine, then back down it" i more or less, breath up the spine, and down the front of my body, yet the most important part, is when the front of the stomech connect to the spine, i hit the top part of the penis muscle, not the lower part of the organ. for the muscle runs back onto the bone. in thus its like a light contraction backwards, over time it creats a strong backwards flow, a strong enough backwards flow, will not let semon leave. this can be noticed, as even ones urin will want to flow backwards. yet! i have not yet perfected this, as i too have only realized it recently.