FOP is wrong, again. I live south of there and have no problem listening to them in my house with a rubber duck. Avon, Avon Lake, Sheffield Lake all has some pretty slick setups. Take a drive by Avon PD. Their antenna farm is impressive. The only one that is a little week from time to time is Sheffield Village. They are on their own 420 system though.
The reason you hear little traffic is the use of MDT's in that area. Those 3 departments use them heavily. They also use their alternate channels frequently, especially Avon.