The Omnis certainly were packing them in when I was lucky enough to visit in `87, `90 and `93. I recall (and have on video) late afternoon Imagination (the ride) had a line using all the exterior switchbacks that go out to the toilets at the rear of the pavilion. I also remember being in a scrum in line in the outside switchbacks for Motion in 1993, zig zagging around the rotunda and elevated exterior track. Never saw the switchbacks in use for Horizons outside, but we always queued through Futureport. Just an observation. From a very small timeframe.