Tracking YZT, in Canada, but I wasn’t sure about the US, other than I remember while conducting an IF approach to LGA in a helo, the controller asked if I wanted a visual approach (min’s just supported an acceptance, but I wasn’t thrilled with having my MA cancelled in the airspace), so I asked what the intended MA directions would be, and he said it wouldn’t be a problem, runway heading to XXX then vectors, so I accepted the visual. In the DCA case, I think the hair on the back of my neck would be standing up as the helo, knowing the pinch point at BOLLING, and having done the daytime routing on 4 earlier and knowing there are no obstacles between Hains Point and the Woodrow Wilson Bridge, I’d be ‘comfortably below’ 200’.