Yeah, why not. I'll put them up on teamseacats tonight or in the morning. This one is a little odd for my a-cat since I put a 7 foot center handle on my trax and my trailer has a forward upright that supports the boat by the front beam. I'm building a trailer box for it now which means I have to change where I store the trax on the trailer...but by placing the trax on the forward uprights and supporting the handle on the mast support upright, I can use the cattrax in their stored position to double-stack A-cats if I need to in the future. It's complicated...the pictures will tell 1000 words.
The other system I've used in the past was some welded "forks" that individually clamped to the tongue of the trailer with big u-bolts. They would simply support the trax...I'll put up some pictures of that too.