AndyJWest

I checked: DCS does model the effect of negative G on the fuel system. Sustained negative G leads to the left and right forward tanks draining, leading to 'low fuel' and/or 'engine' warnings. This takes considerably longer than the 10s prohibition (which again may not necessarily be fuel related), though I didn't actually time it. 

Which may well be a negotiating tactic. Or an attempt at one. As of now, I've seen no official statement that negotiations between ED and Razbam have stopped. Which may actually be relevant to your original question, since I suspect that other developers are unlikely to want to start work on anything that might directly compete with Razbam modules until the situation is resolved. And come to that, ED probably wouldn't be keen either, while they say they are still seeking a settlement. 
A Mirage III would be nice, but now probably isn't the best time to ask for it.
 
 
 

Yup. Per the, ahem, 'manual', roll rate is reduced at high speeds to avoid exceeding structural limits.

I'm having the same issue.
 
EDIT:
Why the heck has this post been tagged as 'Solution'. Nothing is solved. 

So if you hold the switch down for longer than it takes to say 'SITZHOEHENVERSTELLMECH', the motor overheats. That should be easy to remember...

Vortex generators.

This seems to be a result of the way the scratchpad on the UFC probably works. It appears to be a segmented display, rather than a bitmapped device. Only the first two possible characters are alphanumeric, and the remaining seven are numeric only, according to NATOPS. The 'A's or 'R's are '8's with the bottom segment unlit. The option display windows to the right have a different segment layout, so can show more characters.