Bora Centipede Workbench Leveler Foot

I bought the 4 x 8 Centipede with tops having the bench dawg holes, for the purpose of glue-ups and mock-ups for my wood working projects - hoping to get a flat surface to work with. After assembly within my garage, noticed not all the legs were touching the floor - floating just a little. I realized this would not work as I needed a flat surface across the entire table. It took a while to go through different ideas to level the bench, and finally settled on this. Its taller than I wanted, but its as short as I could make it while being spring-loaded - which it has to be to work. The foot works by rotating the top or bottom to a height which works the best; the arrow on the upper foot will point to the millimeter setting on the lower foot, so the foot will increase height up to ten millimeters in two millimeter increments, which I thought would be good enough.

The foot generally works, but there are two more steps two do; 1) incorporate a latch on the upper foot to keep the foot