Thrust it with the right shoulder, feel the resulting pressure with the left shoulder (Pressure Point #4).
The hips does initiate the Downstroke with an "instant acceleration" (10-19-C). Whether you should work on it or not is a different matter.
I believe the initial motion of the hips is supposed to initiated by the intention of moving the lagged club with the hands-"hands/lag-controlled pivot".
__________________ Yani Tseng, Go! Go! Go! Yani Tseng Did It Again! YOU load and sustain the "LAG", during which the "LAW" releases it, ideally beyond impact.
"Sustain (Yang/陽) the lag (Yin/陰)" is "the unification of Ying and Yang" (陰陽合一).
The "LAW" creates the "effect", which is the "motion" or "feel", with the "cause", which is the "intent" or "command".
"Lag" is the secret of golf, passion is the secret of life.
Think as a golfer, execute like a robot.
Rotate, twist, spin, turn. Bend the shaft.
I believe the initial motion of the hips is supposed to initiated by the intention of moving the lagged club with the hands-"hands/lag-controlled pivot".
You are absolutely right.
But Monitoring (5-0) the Pivot (Pivot Controlled Hands) during learning (3-D) is a good way to incorporate the above into one's swing. Once the desired Pivot components are mastered, you go back to the Hands Controlled Pivot procedure.