Well currently I don’t own a ruler so I haven’t made any real measurements. I can say that length of 7.5bp was the last time I checked which was after I stopped about 3 years ago, so I haven’t made any new measurements in a quite a while. Hard to believe I know. No measurement that I can be for sure on at least. I did however mark on the tube where I reached on day one. I have since been able to go past that in what I would guess to be about 1/8” w/o passing 4 in hg. Which is good :)
In theory a 2” inch tube is good for ~6.25” girth, but that means you’re packing the tube. I grabbed a tube that I wanted to grow into and I feel satisfied with it so far. But I also took into consideration that my greatest erect diameter is 1.75” so really it seemed appropriate.
I don’t know what you’re diameter is but I thought of it that way because I’m sure most dicks aren’t perfectly cylindrical. I am no expert considering I’ve only been at it for almost a week now. But lets say you are 2” inches in diameter at you’re greatest you’d probably want to grow into your tube and 2.25” probably wouldn’t be too bad. Of course experts chiming in would be helpful for you I’m sure.
Also the way I looked at it was an end result for length. I’m currently 7.5 bp but I’m pretty good at estimates and looking at the portion of the tube vs where I am I’d probably have to say I’m actually short of the 7.5 in the tube probably a little over 7”. Now this could be due that fact that I haven’t really measured in over 3 years and my bp length has gone down a little or it could just be due to the fact that in the tube a tube measurement wouldn’t measure up to a bp measurement because being in a tube with a rim and all that makes a difference, I’m not all too certain there.
This is all eyeballing but conservatively I’m somewhere from 3” to 2.75” from packing the length and I’d like to hit 8” in the tube which will still give me 2” inches of space, by that time I have no idea what my girth will be, hopefully massive.
So for you lets say you to fall a little short from you’re bp length to tube length where do you want to finish in the tube? For me 2” inches of room as an end result would be ideal for picking your tube length.
Lets say with you’re length / girth you pick a 2.25” [if you’re 2” in diameter] x 11” you’ll basically end up with a 9” incher in the tube and you’re girth will kill.