sdandrea1 I demo'd a G425 SFT in Florida for 2 rounds. I wouldn't say it's any better than the G400 SFT - VERY similar head, sound feel. Shaft options will probably make the most difference.
I think this is the case with most golf clubs these days. Not necessarily better, but different. The G400 head is smaller at 445cc though. There seems to be not much more to squeeze out. It's tiny improvements. More evolution that revolution.
Is anyone going to notice a 2% to 3% gain in MOI etc.? Rick Shiels did a test with a Ping driver from several years ago compared a newer model. He gained 3 yards. ๐