Re: Intelli IMT-500 vs 'Other' tuners.
According to the Snark webpage:
SN-1 (blue) guitar and bass
SN-2 (red) all instruments
SN-6 (black with white lettering) guitar, bass, violin
SN-6 (black with red lettering) ukulele
SN-8 Super tight (matte black with yellow lettering) all instruments
I think there was also an SN-5 (black) and an SN-3 (black) but those are old models.
I have the SN-2, SN-6 and SN-8 - I prefer the SN-8, it seems to have a lot less trouble with the E string. I also have the Peterson SC1 clip on. The Peterson is far more accurate, but it's also very fussy and I find I spend a LOT more time tuning with it. Am I in better tune with it? Probably, but I like the SN-8 better - it can be left clipped to the instrument (for what I paid for the Peterson I am loathe to leave it on while I play and dance around).
None of them are particularly visible outside in bright sun, but the Peterson is probably the best for that.
1918 Gibson A, "Lillian";
1940s (?) Kay A style f hole - currently down for a refret and fretboard re-profile, my first attempts (with guidance) at lutherie.
1981 Washburn M7SN (2 point);
2011 Eastman 504, "Belle";
2012 Lafferty mahogany octave mandolin;
2012 Emando (Saga), "Hank"
1 husband, 2 dogs, 4 chickens.