Well Squiff ol' bean, what you actually wrote was...
"Surely the flare-or-not-to-flare question depends on your heigh/velocity predicament?"
See, I took that as a question by someone who didn't know the correct answer. Sorry for the confusion.
"I was always taught to just lower the bloody lever, keep it in balance and go for the correct speed - depending on your aimpoint."
I think you were taught wrong...or maybe just incompletely. As we've seen, it's not quite that simple.
"Automatically entering a flare could be risky, lest you be left at the wrong height with no speed?"
Again with the ambiguity. YES!
Well anyway mate, have fun with the Robbo transition! But don't worry - I dare say you'll probably pass, even though it may be a tad bit more sophisticated and/or complicated than what you've been flying, but it'll hone and sharpen your skills as you gain knowledge and experience on your path to becoming a professional pilot. Best of luck! Let us know how it comes out.