Yeah those narrow band gauges are nothing more than a light show. I'd look into a wide band like the Innovate LM-2 that allows more than one input and also has datalogging. Its more expensive than the LM-1 but IIRC the LC-1 only allows being hooked up to one O2 sensor, so you only get readings from half bank. There are other brands and better ones, but just a thought.