One of my biggest problems with e5 was the fact that prop mobs such as moon rabbits and yaks would no longer follow you. If maybe someone could tell me if its gs wise or db wise and if it can be fixed in a e5 server then sure i will turn e5 into e4!
PS. Witch quest was e6, e5 was ursa.
PSS. I will look into the mob issue and report what i find.
For now, I may have found where it was fixed at and it can't be changed as of this minute. I will start on e4 to start with I will strip everything back to e4 and add some features as i progress.