Agreed. The problem with thinking through the possibilities for
control is that the pilot's assembly error will put the tow pilot at
risk immediately. Do you have a right to relearn how to fly your
semi-controllable aircraft by putting his or her life in danger? I've
seen several no elevator launches, and in each case, the pilot
discovered his error when he pitched high behind the towplane.

This is a good mental exercise, thinking about how other control
surfaces can be used to manage the aircraft, but I wonder just how
ethical it is to try to apply them at the cost of someone else's life.
I don't have an answer for this one. Just thought I'd throw another
variable into the discussion.