I am adding a whisker pole to be used with my asymmetrical sail on my hunter 340 (1999). The boat is used on a river lake for some racing. I am wanting to add a topping lift. I was thinking of adding a triangle mast hound with a block. I not sure how heavy the hound should be and what size Block I should use. The hound I was looking at is triangular three holes for mounting similar to a padeye. Any help is appreciated thanks steve