I don't need something that hangs out the back I need it to stick out the side so that I can drive along side of what I'm mowing and not have to keep backing out over it.RFMs are nice because you can back them in under low hanging branches and back into blind corners.
But you still have to drag it through what you're trying to mow.when you wrote "pull behind" i immediately thought of a trail mower i had. it was something you could pull behind a lawn mower, atv, etc and had it's own engine. it had issues i would tell you about to push you in a different direction.
but, you probably are referring to a rear finish mower that runs off the pto of your tractor and mounts to the 3pt hitch.
* those are much nicer and better regarded.
amp