"As a towpilot, if you get far enough out of position to "steer" me and I run out of leg, expect to see my end of the tow rope coming back at you.

Attempting to steer the towplane by pulling his tail around is just dumb."

Using the radio to ask the tow pilot to change course is vastly preferable to using the turn signals (just as is the case with most of the other tow-glider signals) but they are standard Soaring Association Of Canada procedures and are in the student and instructor manuals. They specify "pull gently" and should be done so that you don't get any more out to the side than during a boxing the wake exercise.

I've never used them because I use the radio.