you weren't contentious - you said "do what the manual says" (and then got ribbed for being and examiner and not knowing what a 2+ is ..)
The bloke keeps asking questions that get people going and then makes no further comment. If you start a thread on here surely you should be interested enough to participate. I mean this one is the same isnt it? Just use the perf charts and the limitations. I regularly accept a slight tailwind. Chambery, Annecy, Florence, and you just do the numbers or use FlugP or similar and a yes or a no drops out of the other end. Isnt that it?