I laid in my transom 2 weeks ago. did the job with the encapsulated 3/4 marine grade plywood. <br /><br />thought I did a heckuva job, but noticed a hollow spot low and outside where no clamps could draw it together. <br /><br />Its an 1/8-1/4 inch, void about the size of a dinner plate. I've been injecting with resin. The injection site hole is 18 inches above the waterline so no real worry there...<br /><br />Anyone esle see this? <br /><br />Is it a concern?