Yes Michael. The one I mentioned started being almost clean and later got really dense, in fact some corridor between racked boxes are just 1 feet wide !
In THIS case the only aisle defined is the 400' long path I thought to cover using directional antennas in each extreme to create an overlapping zone half the way, the rest let's say is a "dynamic zone".
AP 175 mainly cause is natively "outdoor". It could be any other AP weather proof.