High DT MI, I enjoyed your comparison a lot, and will be trying out the filter trick you used to make the filter. However, you need a dash mat really bad. You will be amazed at the differences in your tests, that glare/reflection will be practically gone, and it will be a lot easier on your eyes when driving! I just can't say enough about how much they will change the way you see/record things. If interested, I purchased mine at Amazon with the company that made the one I bought called Dash Designs, I got the brushed suede finish in black. Other companies make them but this company has a very large data base of molds/patterns for various vehicles/years, quality was very good. Dashmellow got me interested in them with some videos he showed with his dash mat, so I bought the exact same type he had purchased.