Hi all! This is a pretty straightforward question with an equally simple pre-tense. I've been interested in occasional pumping for a while, something that gives a good result for a short period whether it's ten minutes or an hour, but would only be done once every month or 2-3 at most. Something fun, more for play than for any thoughts of permanent gain. I'd be starting from about 8+ inches length and 6+ inches girth (it varies, obviously). What are the typical temporary gains that one could expect from pumping? I see plenty of 10 inch tubes for pumping, but am doubtful of that being a possible pump for an occasional hobbyist, so what could I expect to see in terms of a pumped size? Are there any rules of thumb when it comes to expectations or results, or even process? Any answers and help would be appreciated, thanks.