Ah well, as to that, Eagle Flight and Google Earth VR blur the edges of your field of view while you're moving, which seems to help immensely with it. I get the most queasy with the flight sim when I'm looking at a point in the distance about 50 degrees or more to my left and right while flying. Once I figured this out, I just stopped doing that and as a result was able to fly a plane without a problem.
I tried Elite Dangerous VR briefly, but found it to be entirely disorienting. A large part of that was not knowing the controls or mapping them properly to my joystick, I think. I'm not sure if it would help if I played the game some time without it -- the gaming system is set up in a shared area of the house, so I can't just set up camp and play for hours on it. I'll be building another system for myself when I have the funds to do so.
Interestingly, with a steering wheel and pedal system, I can play a racing game reasonably well, but find that going above 80 mph on the track makes me rather uncomfortable. I believe that the game is actually entirely TOO realistic in VR. Likewise, I can tell you, specifically, that Mount Wingsuit is not a realistic wingsuit simulation, and I'm not sure any VR-based wingsuit game would be. The developer seems to have put very little consideration into the wisdom of learning to fly a wingsuit by throwing one on and then jumping off a cliff. I've only ever flown one out of a plane, but I can do that reasonably well and don't approve of training yourself to fly into the side of a cliff over and over again until you figure out the controls. Moreover, with their controls you have to look almost straight up in order to see the horizon. This gets uncomfortable very quickly. While I do have to look up-ish to see the horizon while flying my wingsuit as well, the angle on my neck is not quite as severe and gravity is pulling me from different directions then when I'm standing with the VR headset on. And I only ever do it for at most 90 seconds or so in the sky, whereas I might want to play that game for half an hour or so. When the new wingsuit tunnel opens in Stockholm later this year, I'll have to visit and see what it's like to fly the wingsuit for 4-5 minutes at a time. I imagine it will take a good bit more effort.