Actually, if the ham is meant for a X'mas dinner, it would be better leave the whole ham uncut on the dinning table and only cut out the portions when you want to serve. Just cut out the portion you or your family/guests want and serve directly. You don't need to cut evenly.
ya ha great idea! maybe end up i dun even have to touch e knife!
ehhh, now my next question : how do u cut a stuffed turkey ?? use e same trick ???