First, no fog on cradle. It would take the fun of the map. It is delicious to take down a sniper with your PP7.
Hitreg is MUCH better in this version, and it is normal that there might be some bugs; it is still a Beta.
Never played YOLT, so can't give you feedback on that.
The server slots are up to the people who host them. I agree with you; it is a mess with 20~30 players, specially LTK. The number you specified seems to be the most adequate, and it lowers in smaller maps.
weapon balancing is also up to the servers; they can leave the ones that come by default, but they normally change them. It is a serious problem if the weapons aren't balanced, but what can we do about that? it is only up to the admins, so I suggest you talk to one if you disagree with anything on his server; that way you can give him feedback on his server and the way he runs it. You may be able to change something that way.
Hope this helped, The Beatles pwn j00! .
Best regards,
PPK