canuckdiver once bubbled...
what I usually use for tank pressure is one hand, and open with one finger for every 100lbs of pressure.
(I think it's pretty much standard)
For instance, if I have 1700psi, open the hand 3 times with 5 fingers, then once with 2.
Never seen it done that way, and I'd read 5,5,5,2, and think you were narced.
Standard around here is to try and do it on two hands, then turn your SPG to the other diver.
This is tough till you get it, but vertical fingers are for 1-5, horizontal fingers for 6-9.
Two vertical fingers are 2, two horizontal fingers is 7 (5+2)
Four horizontal fingers is 9.
17, in your method, is lllll, lllll, lllll, ll.
17, in my method, is l, =.
27, lllll, lllll, lllll, lllll, lllll, ll. Yours
27, ll, =. Mine.
I always use zeros, too.
ll, =, oo.
I learned it years ago from Barry Burton at Smoky Mountain Divers.
Give 'er a try.