I have/had an older + (38's) on the back. Sounds like a truck tire if I have inflated less then 85 psi. I'm 265.
Rolls pretty poorly. But I have been on some junk strewn roads, 2 scrap yards and a metal recycler on one route to work. No flats in 2k miles.
Tread looks brand new.
I put gatorskin 32's on as "event tires" and event is over, but they're still on....