Tom mentioned the various component of the swing that could be causing your contact inconsistency issues. Now you need a systematic process for find the root cause.
Since you have a two way miss going on, I would start with a good look at your grip and make sure it is secure and not allowing any twist of the grip during your swing. Then review the 2.8 drill and make sure you aren’t rolling the forearms in the backswing and downswing. Tom has a couple of videos about quiet hands that may help you.
one other thought, based on my experience, I find my impact consistency suffers when I try to get more distance on a shot. So, evaluate when your poor shots occur. Were you in between clubs and tried to stretch the 8 iron five yards? I find I get a better strike by swinging the 7 iron at 80 % or choking up a finger or two and making a smooth swing with little effort.
Tom mentioned the various component of the swing that could be causing your contact inconsistency issues. Now you need a systematic process for find the root cause.
Since you have a two way miss going on, I would start with a good look at your grip and make sure it is secure and not allowing any twist of the grip during your swing. Then review the 2.8 drill and make sure you aren’t rolling the forearms in the backswing and downswing. Tom has a couple of videos about quiet hands that may help you.
one other thought, based on my experience, I find my impact consistency suffers when I try to get more distance on a shot. So, evaluate when your poor shots occur. Were you in between clubs and tried to stretch the 8 iron five yards? I find I get a better strike by swinging the 7 iron at 80 % or choking up a finger or two and making a smooth swing with little effort.
good luck on your journey!