Throttle body balancing ahead of Beetle map download.

OK, I admit I'm a good for nothing, lazy fecker (my Headmaster said so!) but I'm struggling to find the definitive thread on how to balance my TBs before I do the Beetle map boogie on my 1100.
I've had the map and cables for over a year but have been putting off doing the deed. (I'm happy with spanners, sockets, oil and grease but I struggle to open my emails!)
After meeting fellow UK  GRiSO rider Sidrat, in Wales this year I've decided to pull my finger out. He was V happy with his map and I need to get this done.
A work colleague has lent me vacuum gauges, but I could do with someone to point me in the right direction.
Cheers,
Simon.

I found this to be excellent:

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I hope it helps.