In looking at the pics here, my OH's are a LOT closer to the cymbal groups, on just a stereo pair. I've found that for me I get too much kit in the OH's, of which I'm not a fan. It tends to make the mixes I do a little too muddy with the drums if I have too much room or kit sound in the OH's, so moving them closer to the cymbals seems to get rid of the problem. I HPF between 400-800Hz as well, depending on how much replacement I've had to do...haha.