i have a 2" cylinder, the seal is air tight, i have been pumping for a couple weeks and noticing 'something' my question is this - i see pics and vids of pumping and everyones cock really expands when they do it, mine does expand a little I guess but I also read posts of people who pump for the first time and are AMAZED by the results, I have no idea why mine isnt like that. I have a pretty strong erection, its not like super fleshy-looking like some i see so I dont know if its my erection type or what. anyone else having the same dilemma? the pump does what it needs to do, the pressure is fine, the cock just doesnt blow up, i am not unrealistic about what to expect but it literally doesnt look too different at all in the tube or after I take it out. anyone have any insights? thanks!