Well I used my new Venus for the first time this morning. Did not have a problem with it popping off or anything like that. Started somewhat slow so that I could figure out exactly how it was going to pump. The feeling was very intensive (for a first time). A very nice experience indeed however I think I lasted only about 30 minutes. I will need to learn to better pace myself and hopefully have multiple sessions in a row without stopping. So for my first time it went very well. Doing some other experimenting as well this week with sounds. Not with the Venus as that is a separate experience. I would be interested in hearing what others have done to adjust so they can ride the wave for longer periods time. Is it just practice?