For the sake of this discussion I have just posted my video from 2013 taken at my home Aeroklub Poznanski with a 10 m rope tow given to Jerzy Makula:

https://youtu.be/eBInTKSbq_Y

Incidentally, the rope proved to be so short that the poor girls had to push the glider by 0.5 meter to hook it up.

Enjoy!

BravoMike