Going "Down the Line", some people might call it going across the face of the wave.
The Shortboarder is going "Down the Line" across the face of the wave.
The Longboarder is probably going Straight Down to the bottom of the ocean.
It is easy to tell if you are going Down the Line if water is shearing only off the outside rail.
But remember, you can not JUST go down the line, sooner or later you need to turn. Her board is trimming on the Left inside rail.
But when ( or before ) the wave closes out or runs the other way, she looks back and turns the board. The board rolls from inside rail to outside rail.
Looks like she's going down the line. But it seems she is too far back on the tail and the nose lifts up, stalling ( slowing down ) the drive.
Wave catches up to her. Because she is leaning ( trying to hold a invisible wall ) and not twisting at the waist, she can not recover and turn the board towards the beach.
A good Trim and going "Down the Line", starts with a good bottom turn.
After that, you need to listen to the wave and to what it is doing. You might need to turn down and run away. You might need to turn up and kick out. You might need to cutback to the power.
Going "Down the Line" shows you're not a Newbie-Beginner anymore going straight to the beach. But now that you can go across the face, there's more to do.
Please check out the daily surf photos at http://starb.on.coocan.jp/daily/daily0.html to see more