What are your experiences, men and women, of retention nozzles? I had a double balloon in latex that I purchased in the mid '80's which I enjoyed for twenty years. The silicone retention ones seem to be unreliable. So a delrin fluted style worked well and then I found some great ones from Siliconenozzeles.com. I really like my KGL-3 and just purchased the SPD2.5 and I'm waiting for it to arrive. My 1st purchase was the MiniMax Expanded Ball XL with a six inch circumference no matter how much I try it's beyond my abilities. I've been enjoy enemas since my late teens and would really like some feedback from other practitioners.