azlee the best way to describe scaloping is, when you run your hand over the tread you will feel a series of low spots around the tread. it is from the tire skipping down the road. that is why it is important to balance your trailer tires. a feathered edge like someone ground a low path around the circumfrance of the tire several times so when you look at the tread from front to back it looks like steps. that would indicate a bent axle oralignment. i would call that a blue job! thats the bf's job you do the pink jobs. at least that's what my dw says... funny thing is there are an awful lot of blue jobs
hum... but safty is all of our job!
given what you said about the rear tire and the front. the rear is up on the board to the load moves forward a bit so there is more weight on the front tire