Steve B wrote:
What did you experience or learn... I am curious what not to do!
Don't tow with CG hook without a proper briefing (no pun intended).

The effects are (maybe there is more):
-A nose hook stabilizes direction of the glider. With CG hook, windvane
(??) effect is much stronger. If necessary, put the opposite wing on the
ground.
-stick must be held in forward position so glider doesn't rotate
directly (when enough airspeed is obtained).
-glider is more nervous on elevator in tow.

Again: Don't tow with CG hook without a proper briefing. Knowledge is
only part of the training.