Still holds air but I found these airing back up. We were out for the eclipse and barely even wheeled but there's one place in particular where I remember hugging the side with that tire and the rocks there were sharp.
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Photos don't really do them justice...they remind me of when I get a bad papercut that turns out deeper than it looks. The STT pros seem to have a reputation for good, tough sidewalls so I figure there's a decent chance they're superficial, but i had a 4 hour drive at 60mph on state highways that don't have much if any shoulder so I swapped it out with the spare out of an abundance of caution.
Was I way over the top cautious or was it justified to swap it?
I paid for the road hazard warranty so I'll probably see what Discount will do about it.
On the bright side...the wobble I've been tolerating got WAY better with this one off the pavement.