Quote Originally Posted by TinCow View Post
No, I built this one:



I chose that one because of the automated on/off switch with the lighting and because it was much more compact. Compact was important to me because I was building it entirely underground. The system definitely worked, but it produced very small numbers of mobs. I do not believe that was caused by the design, but was instead because of where I located it. There were simply too many other places for mobs to spawn other than inside my farm, so it didn't work well. If that same one was built in a much better location, I bet it would produce decent results. The version I built was 3 tiers high.
I think the problem with my build is that spider's are clogging up the exit hole. I didn't take any measures against it, and when I'm close to the spawning pad, I hear quite a lot of mobs. I'm probably gonna scrap my build entirely and build monkeyfarm's version.