I broke my own record today: Three minutes of full scrotal suspension. I could have lasted longer, but decided that 3 minutes was enough. If you count the preparation time, gradual lowering etc, it is more than that time, perhaps three and a half.
I have some exciting developments planned too: I have bought an inexpensive digital camcorder, especially for showing me hanging by the balls. I'll have longer time - the routine of undressing, applying talc, the baize cloth etc.
I am also going to try bringing the rope indoors, which is warmer; and suspending from the landing upstairs.
Watch this space!