[dlam]

To add, I think a swinger's Drag pressure is not as intense and felt differently than a hitter's lag pressure The hitter's lag pressure is felt because of a straight line delivery.
The swinger's delivery to the ball is circular and the shaft rotates counterclockise to the ball.This action produce a torque type force
The "drag" pressure is therefore not behind the shaft rather on top portion of the shaft.to produce the turning motion that would be felt at PP#2 and PP#1
PP#4 is also on "top" on the shaft and directs the dragging load as an addition gear much like a gear in a tranmission driving smaller gears to torque the shaft.
This is what I believe is "Drag Pressure" and why it is different from Lag Pressure.