I peraonally havent noticed any interference running 2 antennas. Mainly though I just.like the style of it. Plus my radio is putting out pr.etty good so why not have 2
take one antenna off, and run just a single (with the proper single antenna setup) and tell me then how your range is...
you won't notice static or anything, it's a transmit issue, not a receive issue, chances are your receive will be virtually identical, but your transmit will be about 1.5x stronger