A useful rethink is to consider that the wing runners job is to
BALANCE the glider laterally not to just "level the wings". That way
the wing won't instantly fall when it's released. The runner should
find the 'zero force' point where the glider is perfectly balanced
into any crosswind and run the wing at that angle.

The pilot should let the wing runner do his job by holding the
ailerons exactly neutral until it's clear the runner is no longer
holding the wing

In mu humble opinion:
- The wing runner should make sure that the pilot knows what his
glider wants to do. For example, if the wing wants to fall - lower it,
just enough for the pilot to notice. His job is much better described
as "do not let the wing touch the ground" than "level the wings".
- The pilot should use correct control inputs to compensate for any
bank or yaw from the very beginning of the takeoff roll.

B.