The tube I was using the first month did start slipping a lot from the skin oil I assume. I haven't cleaned it off yet, but through the 2nd tube on and so far back to a nice firm hold. I do notice on the illustrated diagram the extender comes with, they make it look as if the penis head should extend past the actual plastic device at the end. But in reality it gets no where near the end. I am up to 6.5 hours a day this week so hope to work up to 8 in the next couple weeks. I will probably measure at about the 2 month mark and see if anything has happened.

