I'd like to see GV's kick up a dust trail when moving. This trail would billow out behind moving GV's; the faster the speed, the longer the trail. Since we already have smoke trails of various colors for damaged aircraft, it doesn't seem like it would be particularly hard to implement. In conjunction, make the GV dot at distance much smaller, such that a GV on the move would be easier to spot at longer distances; however, a stationary GV would be almost unnoticeable much beyond icon range.
