Speaking of the 520, can those with aging eyes comment on the ledgibility of the screen in different lighting conditions? I had to sell my Edge 500 because I struggled with reading the font(s) even with putting only 2-3 on the screen at once.

Is the Edge 520 better in this regard?...or...is there a better cycling computer that is easiest to see with bigger font size? I mostly want speed, power and heart rate shown on the screen at one time.

Thanks