So here is a update on this:
Guess after a few calls to HL, dealer said the HL admitted that the walls/trim pieces needed reinforcing due to the amount of pressure exerted on it w/ the big slide. No extra brackets designed to aid w/ reduction of stress points from HL, all they said to do was add larger screws (#10's IPO #8's) and more of them. So they did add a crapload of screws to both sides. See how this goes.
NOW here is an interesting thing. When DS and I picked up the coach, battery was dead/slides in. Had them come over w/ their tractor for power as I didn't want to blow a fuse on truck operating the legs. Don't know if I would or not, but better their equip than mine. Got hooked up and came home. Got set up by garage and plugged into shore power. Left it for now/then.
Son goes in it for something Sat and finds that both fantastic fans are on and on "high". Both closet doors open and not secured. Neither of these were either on and doors secured when we dropped it off. He goes onto say that the door into the BR won't latch and that there is a good gap. So later Sat afternoon, I go in to see what's up. He turned off the fans and secured the doors. I find a plastic piece by bed slide on floor that goes to something (slide related??). Other side of bed a I find a carpeted piece of trim/molding about 8"-10" long that wraps around a corner something and this is wedged under the bed slide itself. As for the door, sure enough it's not latching. Looks like the door got twisted somehow as it's out of angle and if I picked up on handle it would then latch, but very tight. PLUS it's not even w/ door jam!! Almost like the door opening got larger. About a 1/4" gap from bottom up that tapers towards the jam as you go up. I know this wasn't this way when dropped off. Am not sure how dealer did this or why they were in the closet or had fans on.
Unit has to go back after Labor Day to replace rubber strip on inside of coach under the kit/ent slide. I would like to call them Mon to tell them what we found. But before I do, what do you all suggest?
TIA.