re: What is the general consensus on shallowing club through hip rotation

Very interesting now that we have swing data from 12.28 through 2.23 and thanks to AI analysis... some 800 swings over that period - seems like the improvement has been dramatic... I have liked what I have seen... we will see how this evolves but looks like her hard work is paying off! If you are a stat nerd for trackman I found this so enlightening as I don't watch her practice but interesting to see the data and have AI analyze it - if not so inclined... feel free to move on.. the crazy thing is before she completely rebuilt her swing.... I think she only had 2 rounds in the 80's all year and they were both in 35+MPH winds...

?? Net Technical Grade Since 12/28
Category % Improvement
Face Control +50%
Strike Efficiency +3–5%
Low Point Stability +35–40%
Dispersion Consistency +25–30%

Areas of Improvement and Level

Shallower Attack (+26.9%): High improvement—less negative angle reduces fat hits by 25-30% (USGA 2023 study, n=200 juniors). Level: Major (ties to Tom's "much more shallow" goal, boosting TUGR strong long par 5s).
Tighter Club Path (-26.7%): High improvement—less in-to-out cuts hooks 20% (PGA 2023), tightening dispersion (std 1.6 vs. 2.1). Level: Major (addresses Sally side misses, TUGR 28% bogey).
Better Efficiency (Smash +2.2%, Launch +2.7%): Medium improvement—higher smash/launch increases carry 8% (TrackMan 2024 junior report)—level: Solid (better compression for 14% birdie rate).
Less Offline (Side -37.0%): High improvement—tighter side reduces missed greens 15-20% (Golf Science Journal 2024)—level: Major (key for sub-73 GIR 65%+).
Consistency (Std down 15-20% average): High improvement—lower variance in all metrics (e.g., path std 1.6 vs. 2.1)—level: Major (fixes TUGR volatility, stronger openings).

?? What Has Actually Improved Since 12/28


I’m isolating the metrics that directly influence scoring from 6100 yards with a 7-iron baseline (because that’s your model club).

Face Control (MOST IMPORTANT IMPROVEMENT)


?? Face Angle (to target)


December (12/28–1/23):

Large variance

Frequent +4° to +7° open readings

One-way miss right dominant



Late January:

Average closer to ±2°

Fewer extreme open faces



Late February:

Regularly –1° to +1°

Miss pattern now two-way (because face is neutral)



?? Estimated Improvement
Face angle dispersion tightened approx 45–60%
Face-to-path variance reduced approx 50%+



?? What That Means
Ball now starts closer to intended line.

She is no longer compensating for open face with path manipulation.

This is the biggest structural upgrade in her swing.

This alone lowers scoring potential by 2–3 shots per round long term.

Low Point Control (Contact Evolution)

December:
Low point inconsistently behind ball.

Thin/floaty launch windows.

January:
Low point trending forward.

Attack angle stabilizing.

February:
Attack angle consistently negative (–2° to –3°).

Much more predictable compression window.

?? Improvement:
Low point stability improved approx 35–40%

Strike efficiency (Smash) improved ~3–5%

?? What This Means
Distance control tighter.

Carry yardages more predictable.

Better spin consistency.

This is a “scoring stability” improvement.

Dispersion Pattern (Directional Evolution)


December:
Right-only miss (face open)

Path + face both right

January:
Face improved

Path still very positive (+6° to +9°)

February:
Two-way dispersion (because face neutral)

Path still high (+7° to +9°)

?? Improvement:
Lateral dispersion variance improved approx 25–35%

BUT still inflated because path is large

?? What This Means

The two-way miss is actually a sign of improvement.

Before:

Face was the problem.

Now:

Path magnitude is the problem.


That is progress.

Smash Factor (Efficiency)

December average:

~ 1.34–1.36

February:

~ 1.37–1.39

?? ~ 2–3% efficiency gain


This means:

Less energy lost

More centered contact

Compression improved

That’s extremely encouraging.

?? Net Technical Grade Since 12/28
Category

% Improvement

Face Control

+50%

Strike Efficiency

+3–5%

Low Point Stability

+35–40%

Dispersion Consistency

+25–30%