How important is for you to have a precise clip-on tuner (if that's your preference)? I see that most models are +/- 1 cent, but some are +/- 0.1 cent. Is that much precision required in a clip on and can they actually detect that much precision from vibrations? Any trouble with low B tuning? I was looking at getting a clip-on tuner for quick tune ups before plugging in, not as a replacement to my pedal tuner (PolyTune Mini) or as an always on tuner. There are so many models out there and I am wondering if I should just pick one that I like the form factor and display of as most are relatively cheap (with the exception of the PolyTune Clip!).