G6 is probably the 2nd hardest of the 109 series to master IMO (1st being the Emil).
Agreed. Hence your satisfaction level will be greater when you master the G6 than it will be for the other 109s!
As others say, skip the gonds. The G6 is armament-challenged, but the two 12.7s add a noticeable (but not huge) effectiveness over what you get with the Friedrich and G2. Because these are German, and not American, .50s, they don't reach out to touch people far away. I've got convergence of all three guns set at 225, see what works for you.
You'll need to work the rudder more than with many other planes in order to keep it stable.
Like all 109s, the G6 benefits greatly from judicious use of flaps. Don't leave them down for long, but don't hesitate to use them. While not as light-footed as the Friedrich and G2, the G6 is still a frisky plane that climbs well and recovers energy well.
Once you've become accustomed to it, the G6 just feels comfortable. It's long been my favorite 109, and one of my three or four favorite planes in AH. Probably you'll never be as successful in it as in the other members of its family, but you'll enjoy yourself more.
- oldman