Is there anything I can do to improve the movement of the livingroom pullout in my 2720SL? It has gotten quite stiff to pull out (would be so much easier if I wasn’t pulling from the side because of the tongue). I end up pulling it part way out, then go inside and push it the rest of the way. Since I don’t know exactly what it runs on - rollers, flat track,… ? It’s hard to know how to address it. This year I was verbally hating on the front end of it. Between the front shell being hard to lift (partly torsion bats need adjusting and partly because the ground slopes down from front end, so I’m essentially 6” shorter than normal) and the reluctance of the living room to pull out, it was a real wrestling match. I did win eventually. 
