Well, my new subwoofer WOULD have been finished today except that some of the screw holes were not dead-on and as a result my T-nuts got cross-threaded and started spinning in the MDF. My screws got ruined as well. I have heard people say some things about T-nut alternatives but the best one to me seems to be the Hurricane nuts offered by Parts Express. They will drill in on my existing off-vertical holes, and they don't require me to glue them to the MDF or hammer them in, and they will probably be less likely to cross-thread. What do you folks think?