I suspect that the vertical alignment of my M8's rangefinder is just slightly off. E.g. I can read the text in a newspaper through the viewfinder, but it always seems less crisp in the focusing patch. Anyhow, I'm wondering how difficult it is to adjust the vertical alignment and get it dead on. I understand that one needs a special tool to use once she removes the red dot on the front of the camera. That's fine, as I can get one of the adjustment tools.
However, what worries me is whether I'll be able to get the alignment right, as I'll just be using my eyes (with glasses) and no type of objective measurement. A question for people who have performed this adjustment themselves: How long did you have to adjust it? Do you feel like you got it dead-on perfectly aligned? Did you find it difficult? Thanks!