Well, I brought the dang slide back in and just took an objective look at it from inside the coach. Like most things, the 'mystery' was not hard to figure out. The slide is not level. When viewing the far corner, the bad one, the inner rubber seal is almost laying flat on the sllide top. On the opposite side, the rubber seal is nearly an inch from even touching the slide top. I figure there is a good 2 or 3 inch difference from one corner to the other. I think this is causing a rub on that torn up side. Not sure if pics will tell the story but I will post a couple.
2013 Dodge Ram 3500 6.7L CTD DRW CCLB
2015 Eagle 355MBQS
B&W Companion Hitch