Oh and one other thing to note. The quality of the paper you print on does matter. I printed on standard copy paper, and certain environmental factors (humidity) can cause the paper to change shape ever so slightly. It's best to use thick, heavy photo paper if possible.
Sure, things like that help the argument that a real protractor/alignment tool is superior; I don't doubt that they are. If I was ok with spending the extra money, I'd probably say forget this and just buy a MintLP or something just to have that peace of mind. If you aren't the type of person that wants to be bothered with making printouts and such, then a professional tool would definitely help you.
Sure, things like that help the argument that a real protractor/alignment tool is superior; I don't doubt that they are. If I was ok with spending the extra money, I'd probably say forget this and just buy a MintLP or something just to have that peace of mind. If you aren't the type of person that wants to be bothered with making printouts and such, then a professional tool would definitely help you.