Flat turns were never easy as one had to remember to put on power as you need to move forward to maintain the correct position. Just try doing it with your hands. Start in echelon and just roll into a turn! Instantly you see the reason for suddenly being out of position. A nice tight arrow formation is just as good and probably slightly safer!
As for PTR it was used mainly for practice approaches when both engines were working well. With one engine dead and the other down to the lower limits of thrust off the tested, it was not enough power unless the aircraft was down to min fuel for the approach. I still believe the correct teaching should have been to aim to touchdown a third of the way down the runway to allow for any shortage of thrust on the final approach. One thing the Jagusr did very well was to stop on the runway. Great chute and a hook!
