I am putting two halves of a round tabletop together by way of a Full Bling Tapered Sliding Dovetail. I just need to know what is going to make the strongest or most durable joint between a 7 degree and a 20 degree bit. I want it to be able to be taken apart so there won't be any glue used. I was looking at cutting a 1-inch thick piece of wood (or 4/4) with a 1/2-inch dovetail bit. The weakest/narrowest point on each side would be 1/4 inch.