Question,,,we are not familiar w your rigs floor plan,,,so are you referring to a side by side tandem theater recliner? If not disregard our response,,,,,if you are we had a heck of a time getting the middle “saddles“ onto the adjacent individual floor middle rails front and back,,,LH front saddle goes over RH rail AFTER you get the RH rear “ clip UNDER,,,,THE LH RAIL REAR,,,once we got it used the aluminum snap ties by each “ saddle point“ over & under both middle bottom rails & tightened,,,worked well once done,,,not a lot of room,,
We,had to remove the travel fastener's from the rails & floor so we could move them out a bit so I could get behind them to do the rear saddle ,,,. Did not put the travel retainers back on since we are stationary,,,but saved them w the other travel restraints off each of our 2 hide a bed couches (from which we also removed the travel restraint clips so Momma Bear can move them out to clean the floors under them).
Proofing my response I hope I did not completely misunderstand your question & confuse the heck out of you,,, if I did my apologies,,,🥴👍🍀.