Just getting back into the game after leaving it for 10 years to Coach Baseball..600 + games later, I joined a club last year and hit 1000's of balls to get the feel of my swing back, retraining muscles, etc.. Just last week I saw a you tube video that emphasized dropping your hands straight down from the top, My current tendencies are the same as yours... short - mid irons are good, the longer clubs I have been hitting over the top.. I made the adjustment, which felt like a radical change, but on film, it became obvious that I was just barely inside out.. I spent 3 days, swinging half swings from the inside..dropping the hands down.. and then yesterday went live at the range and the long clubs started to slightly turnover and the big cut was gone.. hopefully for good...muscle memory I believe is the key.. over emphasize the move, for the first 300 swings ansd you'll be left with a slight correction that feels natural.. I hope to get back to a 10 this year.. My short game needs love.
LK9