Mmmmm. So far I have a pretty good idea just which finger Kobo was going for on this whole one finger lighting adjustment...
I must not only place my forefinger(surprise -shame on you for thinking I meant that other slightly more obvious middle finger!) all the way against the left bezel on my Glo, but I must also rotate said finger so my nail is parallel to the bezel... Seems a little bit tight. If one is not RIGHT(uh, LEFT

) up against the bezel, at least on mine, forget it... I think they need to relax the tolerances just a wee tad(precise engineering terminology), and allow for a bit o' Kentucky windage. Nice feature, thank you kindly Kobo, but the implementation is a bit lacking, at least on my Glo. But, you are so headed in the right direction! Now if you'd just offer those of us with a really bright Glo the option of shifting the whole range down globally so a brightness setting of 1 doesn't still look like a very oddly shaped flashlight pointed directly at my eyes, I'd be thrilled to pieces!