The G20's are really nice clubs. Once you figure out distances you will be very happy.
The 6th at Beth is not a bunker shot, it goes over one though. Depending on wind its about 150 or so.
I think #3 is a 152 bunker shot. I hit about 160 with full BS. Remember though, miss the ding by a fraction coming out of a bunker that far, and the ball can fly 20 yards either way.
I just checked out your clubs, and a little advice if you dont mind. Ditch your fairway wood, and use 3 wedges. Get rid if that starter wedge too. My 3 wedges are spaced out at 98, 77 and 50 yards. Using a punch with wedges gives me 80, 63 and 41. That's like 6 clubs for 3 :-). I would recommend the ATV's at L38 and 39 i think they are. All 3 would run you about 1500 credits i believe. But for sure get rid of your starter at 50 yards.
Give it a little time, you will get the hang of them.