I discovered pumping some years ago and have been doing it steadily for a while once or twice a week. Not sure if there is a lasting effect, but I think it was a great help in recovering from an incident of priapism. Any, in experimenting i found that a vibrating cock ring placed on the tube raises the experience to a whole new level. It is intense! I have two cock rings that fit nicely over my smaller, snug fitting tube. The contact between my penis and the tube allows the vibration to be transferred directly. Moving and positioning the ring adds variety. The pump allows my penis to slide in and out past the vibrating ring. Use your imagination, it’s amazing!
Let me know if any other pumpers have had a similar experience.