There are no problems caused by the use of big boats because, in most zones, except on the Quebec North Shore, quotas are assigned to each category of boats. Big boats are those that are more than 35 feet in length. Small boats are those that are shorter than 35 feet.
The problem is that someone can hunt on a big boat and, after having reached his quota on that big boat, continue hunting on a smaller boat. That's what may cause problems.