Several pilots we know actually, many pilots we know obsess about the threat of mid-air collisions. Yet as an overall accident cause, mid-airs rate near the bottom of the also-ran category. In the overall scheme of things, it’s hard to find them in the statistical noise level.Nonetheless, if mid-airs are among your personal demons, you’re probably a customer for a traffic avoidance device of some sort and the

Zaon’s MRX, right, is the smallest traffic minder yet and, according to our trials, the best performing.

market has provided, albeit not at prices the freckled-neck masses can afford. The exception to this is a handful of portable, glareshield-mounted traffic nags that we’ve tested from time to time, the latest being the MRX from Zaon, a device the company…