Made a suggestion re blindspot in your other thread.
The thing with the blind spot is, it's actually not "that big" but BECOMES bigger the higher the camera is.
No, no...it doesnt actually change size of course, but with the way VR video is intended to put the viewer IN the scene, the higher the camera, the more I"m missing out on from a viewing perspective.
If the camera is on the floor (not a good simulated perspective), the blind spot is only a couple of inches really.
However if the camera is at head height (where it should be imho), then the blind spot is now covering a good few meters of area. 
The full 360 cameras in the price bracket ALL result in stitch lines, and that's unavoidable with how full 360 videos are currently produced (2 or more lenses recording, and the resulting footage being stuck together in post production).
With some good software, skills, and lots of time, you can at least improve it. With smart filming, I think you can at least put the stitch lines where they dont matter (to a point).
The only other camera I was tempted by was the Samsung Gear 360 and I watched MANY user produced videos (not the perfect world, shiny demo videos, and yes I took that same approach before buying a 360Fly also), and ALL of them suffered quite bad stitch lines down both sides.
The Theta S at the time was CHEAPER than a 360Fly but I saw nothing that looked like the same quality of image.
I'm really not sure which is the lesser of 2 evils. (lines vs blind spot).
I'm happy with the 360 Fly for my car stuff.
I have other ideas (short horror movie being one), where I'm really having to think about how to eliminate the blind spot.
Re walking through a theme park (or anywhere to be honest) I am really not sure that 360 Video is the best avenue, and this is a very personal opinion (but one backed up by YouTubes own advice on what makes good 360 Video).
But again, I'm torn. My horror short would REQUIRE the viewer to be walked around. So I guess my advice again is, try to simulate what your viewer SHOULD be seeing while there, rather than making them feel like they are a headless entity, stuck high up on the end of a poll 
Let's face it, it's a fun new technology and we're all finding our feet, while also working out where 360 works, and where perhaps, it doesn't.
Re the Toy videos with your daughter, maybe a "viewer perspective" to think about trying is "seating" the viewer at the table with your daughter. Her opposite the camera, toys on the table. Viewer sitting on the chair on the other side of the table.
You could then place the blind spot BEHIND the viewer, and, with some clever still photography beforehand, and a bit of work in post production, you could even make the spot disappear
