If you were a 9 in Bauer you should be a 9 in true. I'd try a 9 wide before going to a 10 wide. Why did you jump from a 9 to a 10? Also you said catalyst pro, so does that mean they are pro stocks? If so, then they were made for another players feet so certain areas could be adjusted accordingly.
True skates have quite a lot of padding in the heel pocket unlike other brands. So that area does break in and get thinner after baking and after some ice time, and will create a couple mm if additional length once settled.