220v felt good? Hmmm, you need to get out more. I never feel 12v battery voltage - I only start feeling around 60v. The worst bite I got was playing around with an old console TV flyback transformer - in the neighborhood of 75kv, but the current was low so no lasting effects.
The 220V happened back in Brasil. Now the incident with 12V happened in Florida. Something was connected and I have no clue what happened, but I still remember the punch.
MOTHER OF GOD!!.. those are beautiful packs.... they must get some crazy run times with them packs.... I went to a few air plane shows, and them guys are seriously insane, I saw a few of their packs, and it was the size of a friggin' log...
Worst shock I had was 680 Volts, 50Amps... it did not feel good... you could hear it, definately feel it... and you also could smell it on ya...
I like that idea of using heatshrink to hold the wires together near the connectors. Of course it can only work if both of your wires take the same path to your ESC.