Clearing up tidbits on TGM

[tongzilla]

I'll use this thread for bits of the book I've got a few queries on.

• 10-5-0, 2nd paragraph:
  "You can see the Angle of Approach blur of the Clubhead during On Line procedures..."
  
  Isn't the Angle of Approach procedure a Cross Line procedure?
  
  
• 7-1, last sentence:
  "The prestressed (bent) Clubshaft (10-19-A) and maximum Swing Radius (10-19-C) are resistances to Impact Decelerations that each must establish before – not during – Impact (2-M-1)."
  
  What bugs me are the terms in parenthesis. Why is the prestressed Clubshaft associated only with Drive Loading (10-19-A), and max Swing Radius associated only to Drag Loading (10-19-C). I thought Swingers should also go into Impact with a prestressed Clubshaft, no? Likewise, Hitters should have max Swing Radius too, no?
  
  
• 10-19-0, 2nd paragraph:
  "Drive Loading tends toward minimum Lag (the short (Compact) Stroke) – meaning contracted muscles (muscle pull). Drag Loading tends toward maximum Lag (the full (Long) Stroke) – meaning stretched muscles (tendon pull)."
  
  Firstly, what kind of Lag was Homer referring to? Pivot Lag, Accumulator Lag or Clubhead Lag? Can someone explain the difference between contracted and stretched muscles; muscle pull and tendon pull?