I have a pretty standard 26" MTU profile barreled action with a Gen 2 Razor on top. I want to buy and put it in an MDT ACC and have it balance properly, but not add weight for the sake of adding weight. I'd be happy if the whole thing ended up under 20 pounds. What/how many weights should I order with it? I realize it will take some trial and error once its all put together, but I'd hate to not order enough and spend more on unnecessary shipping charges and wait time.