Hmm, followed that ebay link, strangely one pic is Vertex and the other Woosner. My Woosner is several years old and measured good enough for me to put it back with the same rings after a crank rebuild a couple of months back.
If Vertex list that kit on their website, I'd run it and not worry. I've run pins over open boosts before. Wouldn't do it over transfers.
I've done it over exhaust as a younger lad. Less said about that the better but it didn't end well.
