I fish there fairly often. Caught many of fish in the past. Most days are just ok now. If I manage to land 6 a day, then it's an OK day. I do feel like the pressure at beaver has increased over the last 7 years I've been fishing it.
Don, I have also noticed even this year that people come for a couple hours, if they don't get a nibble, they just leave. Patience here is key.
Still can't figure out how to catch one on a chironomid. I do have a couple favourites that always get me at least 1 big un.