Originally Posted by Tomcurti
Andy and XL are right. I started with vinyl from Home Depot. It is ok, but the silicone is much better. With the vinyl, I had to warm it up in the microwave to get a nylon cord through it. It took a bunch of different attempts. Also do several, varying the length just a bit. Having the length right is a key factor and you will have to “test fit” that yourself.I ordered silicone tubing from eBay. Cheap and lots of size options. It grips better, is easy to cut & size and the cord goes into/through it easily. Once you have an operable one, go slow and monitor the grip and any slip issues. If there are issues, it is a tubing length problem.
Do you measure tube length based on erect glands or flaccid?