Toxsus and skinnyguy, you aren’t alone in the girth department.
I think you’ll find the following general trends aren’t far off the mark. Everyone is different, but this is what I have observed:
* Most gain in the first few months using a routine based around jelqing and/or stretching. Some length and some girth. How much of each is highly variable.
* Most hit a stall, or plateau, soon after, having to work harder (sometimes much harder) for more progress.
* Looking through Size’s PE database (see link at the bottom of the page), the typical girth gain is something like 1/2”.
*For most guys girth is harder to gain than length.
* Horse squeezes and similar techniques give good temporary expansion, and sometimes some quick permanent gains. However, progress often quickly stalls.
I began at 4.25” midshaft and am now 4.75”. Base has gone from 4.5” to a little over 5”. My girth is VERY stubborn. I went a full year with no girth increase, then managed to pick up 1/8” last month. Pumping was one part of that successful, extremely time-consuming regimen.
IMO, pumping is worthwhile. I can’t tell you if it alone will increase your girth. Hell, I don’t even know if it would help mine. It is a tool in the PE arsenal. Use it poorly or inappropriately and it probably won’t do much. A program designed around it, or that includes it, may be just the ticket for you at a certain stage in your PE career. Or not.