I propose a Logs / FP heat map.
Wouldn't it be intersting to see a visual representation of the number of logs / FP in a specified area?
Let's define an area by center/radius and then instead of displaying the cache icons draw a coloured circle where the size of the circle corresponds to the number of Logs and the colour to FP the caches have received.
So a big circle means lots of log entries, a blue colour means very little FP, green means medium FP and red colour means lots of FP.