Not with mine, but I have a few pictures of others guy's pistons with top land failures. This is why I don't trust the stock pistons. They are nice looking, but the casting is absolute s**t. I would rather run a windowless 460 piston over the stock unit.
They police their reviews. Mine ain't up there, and believe me, I left one.I've noticed that their last phantom review was Mar 17, now you know why!