This has always been a 6 o'clock POA pistol. My two handed grip is usually very good. Yes, I tuck up under the beaver tail tightly and both thumbs point down the barrel with my right thumb over my left thumb. There are shots off to the left at first. I remember putting more pressure on with my left hand to correct that. Maybe I started to force the shots up with that extra pressure?
the 75B hasn't been fired since February '16 and I don't remember the last time it was cleaned. I really need to break it down, give it a good cleaning, and lube it correctly. Then I'll head back to the range with it and try some shots from a hand rest first and see how it goes.
It's also got the 10X CGW bushing so I don't think the barrel lock up is a problem.