M_Boats: Two questions

Hello, I am now preparing my M-17 for the first real sail of the year, and I came up with two questions. 1) Does anyone know what is the thickness of the battens for the mainsail? One of my battens is missing, and I ordered new ones, but the ones I ordered is 3/16" thick. Now by measuring mine they seem thinner, perhaps 1/8 at most. Does anyone know? 2) I have seen some people install a teak mat on the bottom of the cockpit, and I would have liked to install one myself. I can probably get a friend of mine to build one for me, but I was wondering how do people keep it down in rough seas? I wouldn't want to drill into the cockpit floor, but I don't see any other solution. Thanks, Andrei. 1982 M-17 Seaweed