I recently drilled two 3/16" holes in each the spreaders on my 1973 C&C 30 to mount some new LED spreader lights. Should I be concerned with the structural integrity of them in any way? I didn't think about it until I had already drilled the holes and riveted the LED lights in. I should have used smaller holes, but I was in a rush to get them up before the mast is stepped and didn't put enough thought into it. The metal in the spreaders seems quite thick, but I just wanted to get some peace of mind!