Re: GRSC Reviews???
I do not recall tunnel vision being an issue at all. It was pretty good on 1x.
As far as adjustments go, magnification ring was pretty smooth. Eyepiece focus stayed put just fine. W/E stayed put once adjusted. I did not check the tracking carefully, since for a scope of this type, it is a moot point. The reticle is used for holdover. The knobs are only for sight in.
Optical quality was decent, but not exceptional. It seemed to be pretty decent for the price range, but the selling point for the scope is definitely the reticle.
ILya