Hello all,<br />I've made some progress and have removed the rotten transom. Now I see many holes (up to 30) in the aluminum hull. They appear to be drilled in a set pattern. What are all these used for or could they have been drilled in over the years? Should I fill them in? I assume that the 4 larger hole in the center are for mounting the motor, but the others......<br /><br />Many thanks,<br />Jim