Yep, that is what I'm talking about in Stop Hugging Yourself - One Arm Olympic Hammer Throw, with the swing center being different with a two-handed swing vs one-handed swing.
Two-handed swing, the swing center comes straight out the sternum between both arms/shoulders.
One-handed swing, the swing center comes straight out the shoulder/s.
I definitely didn't get that from that video. Rewatching it I can see the angles and I really think I'm getting it now, but I still don't feel like it explicitly is showing me the tilt for my learning style, I misunderstood.
I just want to be 100% sure I'm stating all of these things correctly:
-in a 2 handed swing like baseball/golf, my swing axis is still my spine/between my shoulders. The leverage/hit point is closer to me because it is two handed rather than a disc/hammer that is one handed and extended out longer. I should feel like I brace or center my spine/sternum on my plant leg for the swing.
-in a RHBH I brace my left/trailing shoulder on the right/brace leg. This makes my entire shoulder unit a lever on the "swing side" of the throw, and the hit point is way out front since this is a one handed swing and the trailing arm doesn't need to be attached.
-in a RHFH shot I still brace my trailing shoulder, this case right shoulder against plant/left leg. I do not have the shoulder unit now as part of the swing, as the right shoulder is essentially on the axis. This is why FH inherently has less distance capability from backhand?
.....
Here is an illustration showing how I was thinking about tilted spiral compared to what I now am seeing and feeling.
I thought the tilted spiral was the spine axis, and how it pivoted/swiveled targetward with the butt countering the chest/shoulders. This is as in the McBeth image.
Now I am feeling that the tilted spiral is actually an imagined axis from rear shoulder to plant leg, and it allows the entire shoulder unit to be the first lever of the pendulum.
If this is correct, I've been essentially missing an entire pendulum multiplier, that also happens to be the first pendulum of the sequence and a long one as it's the length of my left shoulder to right shoulder? This would almost be like comparing a beginner who rounds their throw to my current form that has the upper arm to elbow lever added...and why pro's have another 100'+ from me?