to be completely honest bro, SoD is the best. It is also one of the client versions that is supported here as well as a rare one at that! You can no longer get SoD from torrents that I've seen nor can you get it from Steam download client. So no matter what you do brother be sure to always keep a copy of that SoD install you have now. Let me know if you go with UF and how it works out
