If I was being approached head on by traffic at same height....I'd drop down 100'. That is the thing I like about flying with a ZAON XRX - the azimuth data is pretty good but so long as there is a vertical offset no collision.
One thing though, very rarely does a collision happen in S&L flight. Normally it is caused by one or both aircraft manoeuvring - makeing turns, climbing, descending.
Regarding FLARM - if it is interfaced to the Garmin x96 GPS's then you can have audio warnings as well as position displayed on the GPS screen. I interface the ZAON through the 496 and it displays the traffic on the GPS and tells me when there is dangerous traffic about as I also have the 496 wired into the intercom. If I could somhow get a FLARM box without built in GPS (cheaper), then inject the NEMA position into the FLARM box from the 496, then interfece the FLARM box back to the 496 to display the traffic on the screen then one could have a very neat FLARM installation which could be hidden behind the panel - possibly just having a hull mounted antenna installed (is that a Mod?)....Would be great if you could do the same with a ZAON type box and have a hull mounted antenna for that.