For shorter clubs, say the 7 iron to SW I put most of my body weight (70%) on the front foot and keep it there throughout the swing.
Quite clearly my aim is to hit the ball on the downswing.
Let's call this swing type (A), or "staying forward".
With a long club, e.g. the driver, my weight starts 50/50 between both legs, then loads up on to the back foot during the backswing.
My body weight then shifts to the front foot during the swing, while my head stays behind the ball.
My hips move toward the target but not a massive amount because I want to hit the ball on the upswing.
Let's call this swing type (B), or "hanging back".
These two shots are simple to remember and execute because they are opposite extremes.
My brain knows very clearly what to do. It's either an A shot or a B shot.
The 4-6 irons, however, sit right inbetween those two club length extremes and that confuses my mind, this uncertainty leads to bad contacts.
With the 4-6 irons, I start with my weight distributed roughly 50/50, then try to load up weight into my back foot during the backswing, without swaying. The subsequent weight shift from the back foot to the front foot and hip movement toward the target (to get to a similar, steep impact position like in "A"), make it difficult to get a consistent contact, and I feel it's mostly because there isn't a clear enough definition in my head for exactly how much I'm going to hit each of the 4,5 and 6 irons like (A), and how much like (B).
Do you have any tips how to stop this uncertainty? Very much appreciated.
If you don't mind, please mention how / if any advice given applies to the 2 or 3 iron as well.
(I don't have these in my bag, but I'd still appreciate the insight as it will help me better understand how to play different length irons in general.)