Trying to find a good way to clamp the work piece without using hold down clamps. I came up with the solution below that seems to work well. Got a 5 1/2 in piece of board and ripped it in half and cut it approx. 33 inches long. Then I got some rubberized kitchen cabinet drawer liner and glued it to the front edge of each piece. Drilled holes near the back of each board to match up with the T-Track.
Now simply slide the first piece onto the T-Track and square it with the front of the XL machine. Lay your work piece against it and slide the second piece on the T-Track. Push it against the work piece and tighten the clamps.
The work piece will not move front to back because it is clamped between the boards and will not slide left to right because of the rubberized liner.