How accurate is the a/f readout on the Apexi TT? I have heard that if you let it warm up for about 20 minutes, the reading is pretty accurate... I haven't really found anything on here about it's accuracy. Any comments would be appreciated

Here's what it looks like:

im not sure. i believe the tt are narrowbands. cause i know the narrowband gauges that people buy are not accurate at all but a light show.

Ya i have a narrowband a/f gauge in my pillar and it is a nice lightshow, but there is actually a numeric readout on the TT... just wondering how close it actually is to maybe get a little better of a tune on it, till i break down and get the wideband