Well . The folks at MORryde just answered me back and they say that it looks like normal wear that a G-614 have..
They did tell me to raise the trailer and check the bearings for tightness , but they are pretty certain that's normal wear...
In fact , the guy who answered (Gary) , has a 15,000# camper with the G-614's and IS suspension. His tires looked exactly the same on the inside edges .. He was able to get 60,000 miles before changing them out..
I am taking a trip over to Wingfoot later this morning to verify...