Regarding the Ruler of Truth Test:
I'm sure it's been covered somewhere before, but IIRC, the 1x or 1.1x is measured at the objective lens. So, factoring in the length of the scope+eye relief means seeing the view is from about 15" closer. At shooting distance, this is a tiny, almost unnoticeable percentage. Very close, say two feet, it's A LOT higher percentage of the distance. It would be more accurate to use something larger at shooting distance. This is also why front sights look fuzzy unless you adjust the focus to the distance of the front sight from the scope. Aimpoints and Eotechs don't bend light, hence their true 1x, no eye relief characteristics. The shooter's eye is adjusting focus automatically, which the scope doesn't do. The shooter's eye is stuck with the virtual image created by the optics at a fixed distance.
Regarding 1x or 1.1x
I read somewhere that most of those are based on thin lens calculations that don't account for the thicknesses of the lenses so it's not entirely accurate. More detailed calculations or actual measurement should be a more accurate gauge of actual magnification.
I really like my TR24G a lot. Nothing's perfect, but thanks to the BAC, it works really well as a 1x and can be varied up to 4x. It's also nice to not worry about batteries or brightness adjustments. As shown, the worst case is a big, dull, green triangle that's still easy to see. As far as BUIS, there's not enough room on my bullpup anyway.
Thanks,
Lee