No one is saying that's the official setting

Personally, the only server I've seen to do 60% 60% exp when two are sharing, and 70% 70% when both players hit the monster is heRO. So I assumed that was one of the several customizations done on the server. On official servers, it works exactly the way heRO is working right now. But on old SVN, it was like I mentioned on my previous post.
So yeah, if it was a change you did on the old SVN, please add it back. If old SVN was on default share setting, and current SVN is on default share setting, Can't find any arguement on why you should change it .. sob