If you have to fine tune by ear after using a tuner, its not much of a tuner.
this.
and again, with the turbo, that's not "jitter", as in extraneous movement obscuring the true picture. that movement
is the true picture, it's what a vibrating string
actually does.
when you grasp that, how a string actually behaves when struck, the display will make sense as an overall picture of the complete sound, messy overtones and all. you'll be able to see how transient attack affects pitch, something regular tuners are just too slow to catch.
on a regular tuner, that green "in-tune" light or whatever that "locks on" when you're supposedly in-tune is just the tuner "giving up", saying "ok, that's as close as i can get, here's a green light for you".
on a real strobe like the turbo or a mechanical unit, the turning just gets slower the closer you get to perfect. there is no "i give up" light, and no error-margin.
with a little practice, you can determine how "perfect" you need to be for a given situation, and move on to the next string. you learn to be your own "margin-of-error", greatly speeding up tuning.
for example, on stage some slight leftover turning will still be as in-tune as a tu-2 could ever tell, and will be plenty close enough to start the next song.
for setting intonation, you can intonate to the attack, which will be not quite the same as intonating to the steady-state pitch afterwards. the attack is always a bit sharp, so intonating there will give you an overall better sound in real-world playing.
