Pete:

So the cat is still on the trailer when stepping while using the mast support as a crutch? Balance beam anyone? If it is on the ground, you'll still have to do the extra work of tieing & untieing the trap lines, stepping over the bridle, and the reduced leverage (if it mattered) compared to being on the tramp. You could always use the mast support as a crutch when stepping from the rear also, if stepping from the ground.

BTW, the mast base, spindle, and retainer setup is much improved on the Falcon. You probably can swap out your existing setup easily.