[Diesel-Gypsy]

Traveler, I think you have got it 100% correct, the G-614 RST is a marginal tire for the MS.
I too have had blowouts, 3 of them, always maintained proper inflation, kept speeds under 65mph, never over-loaded, still had tread separations.

I think what really must be the root cause is over-loading, but in a dynamic versus static analysis.
We all weigh these units standing still, and we all are usually within the weight permitted, but in a rolling down the road scenario we are all over-loading our tires with every bump & heave, and dip we pass over.
Just go stand on a scale & weigh yourself, then with-out actually jumping, just quickly flex your knees and watch that scale needle bounce 40% higher than your static weight.
After a 10,000 miles of that type of dynamic over-loadeding, the cumulative effect is tires which are damaged, and fail in service.

All the Suites coming out of the factory now are on 17.5" rubber, why...?
So, I too have switched-over to the safer alternative, I am now on "Big Rubber".

Just my $.02

RL