The pro version is not more specific and elite than the EC5. The only difference is the pro have titanal in the construction wich had smoothness and dampness in the board, better edge grip and easier to ride. Many of us have tried both and have all pick the pro version because it's a way better ride. Since you are riding in hero snow, the 175H can be a good option too. Will better hold your weigth. The 168 I have work great on hard pack and ice but in softer snow would probably be better with a 175.
Jeff