Personally, I think the idea of the unarmed RV8's for spotter planes (you know they each side had those) is a good idea. At one time I did a lot of GV'n and got half way proficient at them, but since I'm not now, I'd gladly fly a spotter plane for the guys on the ground if they wanted them. I think our VOX is a very close approximation of the way they would have had to spot "no, its behind the other hill" at the time.
If the GV guys think they would rather not have spotters I'm OK with that too, its their deal, give them what they want I say.