Sorry - missed the second half of your question.
We didn't have any trouble flying procedures drawn at 185kts. If necessary you could fly and manoeuvre at 190kts IAS, it was just very thirsty and noisy like that. We wouldn't manage 10miles out at 210kts on a SID, but I didn't ever encounter a SID like that. In the case of terrain-constrained ops (which may cause the above) we would have to come up with some usable aternative.
The 'tightest' destination I recall was Sondrestrom (as it was still called then). Although noone in their right mind would land a heavy on RW28 (as it was) we had to demonstrate it in the sim. It really wasn't an issue in terms of turn radius, the trouble was the radalt ramping caused by terrain combined with our higher speed. It was just possible to avoid the dreaded GPWS.
Of course when you took the real thing there we just landed staright in on 10.