It's out. I tried a few more holes trying to get a screw to get good purchase but no luck. Of course, I welded the wrong bolt to the cover so I had to make an adapter. You can in the photo why I was reluctant to weld. It's been 20 years since I've done it. It's ugly but it worked. I just gave my 3lb slide a couple of nudges and it slid right out.
