Between 10 to 12 subs, each with rotating 10 filters each. We have to mix several goals in one sub, which destroys the efficacy of EOSEs.
I wish more relays worked on their sub/filter limits to a more reasonable amount. 30-40 should be enough for most clients, even heavier ones like Amethyst.
The bigger the amount of subs, the better the handling via EOSEs get and thus the smaller the traffic and frequency of filter updates get.