I’m not sure what a “440” is but this is what I have been doing..
Get as hard as I can, with my right hand I grab the head area making sure my hand and fingers cover the area (s) near the head I’ve had problems with.. I start squeezing the head area first.. Next, I grab right at the base lightly then kegal as hard as I can then squeeze like hell, slowly pushing both hands towards each other, sometimes with a minor bend thrown in for good measure…
I pump at 2-3 Hg for as much as an hour on my light jelq days…