As I write this, my cock is packing out my 9x2.5" tube from Vacutech, I'm wondering where I can find a comparable replacement site for when I want to enlarge my cylinder size. Any thoughts? I've got a 2" ball stretcher keeping my scrote from getting pulled in, and I'm packing it pretty solid. I want to add a larger cylinder so I can get my eggs pumped also. Thoughts?