Cat Driver,
I have no doubt that you tread warily.
However, to play with significant asymmetric thrust near the stall is a significant hazard, regardless of care. To do this at altitude offers some additional problems with respect to the numbers.
I wonder if we could entice one of the experienced experimental TPs to comment on the matter ?
It would be a pleasure to catch up with you at some time .... I surmise from your profile that you would represent a most entertaining wealth of yarns over coffee (polite word for a beer or twenty) ... and I can promise several other interesting attendees to make an enjoyable evening out of it .... I was always sure that the Cat reference couldn't be to earthmoving ... now I know ...