I am a jammed-in tight fit into a CB-3000. I sometimes pour out of air vents which are always blocked and sometimes come out the front when flaccid. Terrific for peeing because I am always immobilized against the front opening so can always use urinals. I only see smaller cherry keepers but like the open design for hygiene, which is the shortcoming of cb 3000. Do 5bey make larger ones to fit me?