Nigel.....have you ever done crop spraying?
One would find that Torque Turns are not the best way of turning the corner at the end of a run....one can horse the bird around by torquing it....or one can "fly" around smoothly and keep the airspeed at the sweet spot the whole time....and be just as quick, accurate, and far safer....along with much easier on the machinery.
Griffo can attest to that I believe as Crop Spraying is in his bag of tricks.
Crowns and Griffo.....now that would be a sight!