My starting unpumped girth is 5" (12.7cm) and I want to focus on hopefully increasing that. So I will change devices, but what size tube should I start with?
So today I'm going to try pumping for maybe 1-2 hours on a very low preasure, normally I do two sets of 20 minutes with preasure just below 10, the tube is 2" diameter and 9" length, I pack it width wise but not length any advice and tips welcome
