It's not impossible at all BUT (there's always a but)........
Need:
to have practised it
to get nose down and speed up
to turn into xwind if poss
to have pre planned/pre briefd
to have clear parameters eg "above x' i will turn back l/r"
to know that achieving the runway is good but not vital - flat green airfield is good
to know that fields ahead are probably better
to only do it for real if there is no other option
On the Bulldog never served at an airfield where it was necessary. Camp at Woodvale was interesting. Lee on Solent - the 90deg turn for the beach better than the water. For the students, keep it simple eg "once yr half way round the upwind turn you may continue the turn to the a/f"
too many people have been hurt in turnbacks, inc a good mate at woodvale some yrs back.
just my thoughts - hope it helps the debate