A bunch of us need to buy a good chef's knife as a special birthday and Christmas present for someone. $150 budget. We know it matters how it weighs and balances in the hand so we'll buy it from somewhere it can be easily returned, in case what we choose doesn't feel good to him. He could use a seriously good chef's knife. What I don't know is if the one he has is a Santoku. Personally I'd go with a flat edge vs Santoku but comments are very welcome. Thanks.