Ok, sorry for the coy talk causing some confusion.
Mustang talk about a two cylinder method in their instructions, one cylinder for the penis and the other for penis & scrotum.
After an exchange of emails, body images (the people who make the Mustang) suggested either 2.75" or 3" for the second cylinder, but still no hints on how to determine exactly which to use..
The Dr Joel twin cylinder set I’ve seen on the online UK stores is different to the products on Dr. Joel Kaplan Home Official Website For Dr. Kaplan’s Male Enhancement Products
The package available here doesn’t indicate what size the cylinders are. It made me think that the penis and scrotum cylinder was a special one for the job rather than just a larger size, if that makes sense..
Initially, I was having problems getting a good seal and had to keep topping up. I think this is better now, I’ve been using the ID glide I got free with my order. Last time I smeared some around the base of the cylinder, that seemed to do the trick.
Thanks for the tip on the aqueous cream, I’ll put it on my shopping list..
With an approx 5" girth, I’m finding that there’s not much room in the standard 2" cylinder.
With all this in mind I’m thinking of ordering 2.25" & 2.75" cylinders..
Thanks for all your replies.