I just put the backing on my new 12wt and I am planning on (attempting

) to entice some daisy chaining tarpon this summer on the beaches. Does anyone have any recommendations for the proper line for my situation? It will be anywhere from 5-15ft water depth, relatively clear water. I've narrowed it down to scientific angler, rio, or cortland crystal but I'm not sure what would be the best between floating and intermediate sinking tip lines. As it is relatively expensive I would appreciate some suggestions!
To make it easier I found a video from my area that demonstrates the situation I'm talking about
http://www.youtube.com/watch?v=-ShK4sieksU