In defense of the Blinkity Autometer, I will say it is a great last minute warnign device. You don't have to look o see if your runnign lean, (orange,)or know if your goign to have slight to heavy damage, (Red at full throttle.) I wouldn't buy one for trying to set the right air/fuel ratio, I'd buy a digital one for that, and get the autometer for at the track, tiems when you can't watch those gauges, and have to be reling on raw color, it is the at the glance ordeal.
The wideband is a very, very, very nice tool, if it weren't so much i'd have one, but it is the same ordeal. Maybe its just me but at a 13 second pass id on't have time to stare down those gauges.