I also forgot to mention you can clearly see in the stats that it says 14 hosts, meaning, its counting the ultrapeer you're connected to and the other 13. As far as the horizon, I think its giving it for the ultrapeer you're connected to and of course the other 13. When I say horizon, I'm not talking about its also calculating all the Leaves that are connected to each individual ultrapeer as if it was one big sum. Its as if you were connected to 14 other hosts in "normal" mode as without being a leaf or ultrapeer.