Thankyou Jack for the feedback.

I get the point about how the blocking/locking can confuse the body.

I'm just wondering if it's ok to do practices such as pumping and squeezing the PC muscle and visualise energy circulation without any sexual stimulation. I do this also, as a type chi kung meditation/concentration/breathing type exercise. There's no feeling of holding back with this as there's no touching or sexual stimulation at all.