Yes, high line generally provides the best speed.
Here's a link to a surfline thought from Mick Fanning:
http://www.surfline.com/video/video_pla ... m?id=14307
Again, the point about too high on the face is about NOT being able to drive in a comfortable position. Consider hollow waves, where it it possible to surf higher, but not drive higher.
A personal example is:
album_showpage.php?pic_id=6620&user_id=3
If that works.
This is an example of 'too high.' Granted, it's constrained by me, but looking at the spray off the board, drive is lost as a result of me negotiating the section.
It's surfable there, but the potential to drive for speed is below me on the wave.
That's what I meant about drive-through-the-fall-line being that which describes the fastest path.
Another aspect brought out is potential vs. kenetic energy. If your body position is low, with the possibility to thrust, potential energy is maintained with the best advantage for conversion to kenetic.
So that's a great point directly related.
The best outcome for success is guaranteed by keeping as much close to the vest (potential energy) (as long as that energy is focused on maintaining drive in the fall-line.)
(With that pontification, slap myself upside the head and give me a big WHATEVA, MARY!)
