I’ve seen some users who have T-tracks add some rabbets to their MDF spoil boards to go over the edges of the T-tracks. The goal is to prevent the tracks edges from bending up when a lot of force is applied to the clamps.
Typically MDF is readily available in 3/4" x 49" x 97" sheets. I just googled t-track and got the picture I’m about to paste for my first attempt. To cap that track with 3/8" of MDF would definitely add stability to your setup.
