Cylinder size selection question

I’m checking out the LA pumps. My current erect girth is 4 3/4” and erect length is 5 1/2”. Should I pick the 1 3/4” diameter cylinder (as recommended) or 2”? How about length? Should I pick the 8” or 10”? Will it hurt progress if you pick a cylinder that is too long and wide? TIA!

1 1/2” or max 1 3/4” IMO

You could get both but, I think you would not need the 2” yet.
Btw I got a 2” and others bigger but I’m 5” (not much bigger than you) and head is even bigger and if tubes were not so much I would get a 1 3/4” but also when ever I would look for one locally they were never in stock..

Start with the 1.75”. If the 10” length tube costs no more, get that rather than the 8”.