So I've come across alot of material about lunging in the context of baseball hitting which describes my movement issues pretty well? Common features are a lack of backside load, knee extension of the drive leg and poor spine angle. Effectively they describe hitters as performing a lateral lunge with the bent leg as the plant leg. Feeling it out by performing dry swings vs lateral lunges, I can feel that similarity now.
What I'm wondering on the back of this is whether I can use a reverse lateral lunge (sliding lateral lunge) as a way to learn the correct movement pattern? By starting with my back leg as the hinged leg of the lunge and stepping/reaching out with the plant leg I can see how that would put me in similar positions to a reverse stride/sliding hip hinge drill? My only concern is that doesn't quite fit with the butt leading/short plant step idea. Then again the sliding lunge would just be the lateral component and a way to load the backside, I'm imagining once a rotational movement is added it fits better into a full swing?
At the very least I think I can feel what the incorrect lateral move I'm performing is, just got to figure out the right one (in a way I can understand right to it's fundamentals and apply everywhere).