My relationship with JNN is on the up and up with no funny business. Just a couple of manly men talking manly stuff.
** JNN, still waiting for your PM reply on maintaining a chubby using the band around the testicles technique **
you're not really getting a hard on per se when you tye off
the result of a good "tye off" is a engorged member that is huge/chubby and it hangs- kinda like a sausage link
quite simply you need some KY, "beat off material" (magazine,website, "spank bank") and a rubber band
with beat off with the KY
when you get a good enough pump, slip the rubber band around the base of your dick (behind the balls) and then proceed to double (and maybe triple) wrap the rubber band around the base of your dick
viola
do not leave a tie off on for long time. just follow the rules and precautions for wearing a cockring and apply them to how to use a tye off