Either you were fit badly or something has changed in your swing between GG and now. It might be as simple as ball position or as complex as a change in the swing.
If you are struggling, might I suggest the range and a practice session or two as an alternative to selling the club. If that doesn't fix it, then consider trading it in for a club that has no offset. If you are happy with the club itself but want to prevent the ball going left, another alternative is thicker grips. BDC uses really huge grips and apparently that makes it very hard to hit a draw/hook
I bought the G425 Irons and hated the Arccos grips. Sent them back to Ping and they regriped them for me. Since they were my first Ping clubs I ever owned. I love them and since have repacked most of my bag with new Ping G 410's not G425 because you don't have to deal with the Arccos grip. The G410's are hard to find new. Still looking for a G 410 7 wood with regular shaft.
I can't help but think that Ping made a big mistake by offering the Arccos standard when most golfers don't want it. They should at least offer a non Arccos grip standard also.