Thanks everyone for all the info. Plan of action is as follows...

Going to take the coach in for tire balancing/equal, and check the valve stems and replace with extensions necessary that will fit new TPMS (Pressure Pro). Swich out tags with outside drive axle tires. Have all tires aired up to 100psi, then weigh the coach. Will then air up to desired pressure. Should know if this has solved the problem within 5000 miles or sooner. If problem persists, will then take a look at the tag alignment and air release/fill for the tag axle.

Wish me luck!