I don't know about the G2 trigger but I have read that they are the same as the Encore. With that said I bought an Encore that had a 9.5 pound trigger.

I measured it with my digital trigger pull gauge. I went to Bellm's site and got the 80* diamond hone, Wyoming stone, spring pilers, and a spring kit. I then downloaded his tutorial to my PC. It took me about 45 minutes and I had a 2.5 pound trigger that breaks like a glass rod.
The turorial is great with very exact pictures of each step.
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** NEVER! Moon a Werewolf!!**