Just some observations for you guys running the ballenger wideband. I installed one in my plane last week. The displayed A/F on the SDS (set to AEM- new) does not match the display by quite a bit sometimes. The AEM controller's range is 8.5-18.0 and the Ballenger is 6.0-20.0. I have the 0-5V going to my G3X and am able to set the gauge up to match the Ballenger display exactly. The plane hasn't flown with it yet, but on the ground I saw as much as .8 difference. Hopefully the sensor lasts a lot longer!