Ryan. A buddy saw mine, and his track saw is the Kreg, and they just have shortie rails, and he put 4 of them up. with 2 pairs of 2, one over the top of each other, and has them hanging from plywood gussets he has hinged, so like an index file, he just flips up the carrier, and takes one off, grabs the next one down, and gets it out, for as many as he needs for whatever he is doing.
I have a long rail, and a shortie. The shortie stays upright, and I have a small area walled off for it to fit into standing up. I just hang my long one. I don't do long sheet cuts near as often as smaller 1/2 sheet and smaller cuts, so I want it out of my way on the garage door. Plus the long one costs about 3 times the price of the shortie. I am planning a 55" tall 24' x 24' square roll around tool cart that I will end up hanging the shortie rail on, and have the saw in the tool cart.