...Now, after more description than you probably wanted, my question. I think the stick a knife in it imagery is probably similar to 10-19's drawing the arrow feathered end first. Where do I stick the knife? My thought now is that the butt must always point at the plane line, so it's going to be a point on the plane line. Do I stick it in the aim point as 10-19-C #2 appears to show (If I'm not misreading the book - this point can move forward or aft depending on various things)? I don't see how doing this I can concern myself with impact fix hand location. At any rate, am I on the right track with this knife in the butt of the club imagery? If I'm not please stop me now....
...for swings using PA#'s2&3...try sticking the knife in your lead knee (until the clubhead releases) and the arrow in your lead big toe...