No, the needle doesn't go into the testicle - just into the scro tum.
Having read the info on that link you provided - that sounds like the same procedure that I had. Just a small cut on either side. I have a couple of stitches in each though.
The part that hurt on the left one was when he stuck the hook thing into the scro tum to pull out the vas. Just tell the doc that you have a low pain threshold and that he should give you plenty of local.
Not too bad this morning - sat at my desk in a slightly reclined sitting position feeling like a dog that's just been kicked.
I can recommend sleeping with a cushion in between your knees though - that way you won't squeeze your nuts with your legs while you sleeep.
edit: what's wrong with the word s c r o t u m mods? Why should that be banned?
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Mod 3, This is the result of an "auto censor", nothing to do with the mods