I don't use the strong mount because I like loading sitting down, and with the press bolted to the bench that gives me perfect height.
I use the bracket that comes with the tray, just mount it differently. I put one screw into the edge of the bench, and below I make a simple L-shaped bracket (actually, a bit more than 90 degrees), and use it for additional support.
I have to tell you - I HATE the way Dillon places its trays. I like mine right next to the turret, so my hand would not need to go far for the bullet. You can see the soft cushion I put at the forward edge of the tray, I rest my hand on it, so pretty much just my fingers move back and forth.
Last picture shows the convenient location of the tray.
Another worthy addition I put under my presses - a rod connecting them to the floor, it gives it that extra degree of stability that is extremely welcome.