That looks top drawer to me, Will. I have a bunch of lathe dogs, and every time I need to use one, none of them will fit without major modifications. I end up just cobbling something together to do the job, and then put the pieces back with my cutoffs when I am done with it. I stopped thinking about making a drive plate for the same reason. I'm waiting for the job where I need to have one, and then only finishing it enough to do that one job. It will constantly be a work in progress, morphed to do each job. I have a D1-4 mount and a plate for a dog driver, just waiting for the day...