The reason it was put in place is to reduce harvest to keep white man’s quota under the allowable harvest limit. There is no biological reason what so ever.
That was after several slot limit tries did not work. If I remember correctly, we went over limits 2-3 years in a row. It was one of the less painful options at the time.
Now, the reason I believe it stays is the resorters love it. Gets everyone off the lake and into the bars and restaurants. Not the top of the list for things they want changed.
-J.