Originally Posted by
Talkdownman
Sir, with respect, I don't think that you know much about the knowledge of controllers

Possibly - but I've certainly had several experiences where I had to explain in some detail the nature of an issue to controllers who did not get what to me was intuitive.
For example, that the generator failure I'd just suffered would not cause a subsequent engine failure (but that I might need a radio failure procedure to fall back on), or that nobody will do 140kts TAS crosswind whilst climbing at 600fpm at 5000ft in pretty much any standard single.
I have discussed this when being a volunteer pilot on a TRUCE course, and it re-inforced my opinions. Not that I would blame the controllers as much as I would their employers for not providing better training opportunities.
G