If I purchased another set, I would still have them checked. Mine are from the second batch sold (had to wait as initial batch sold out quickly) and I had them checked at the machine shop along with all my engine parts. They found 5 valves with hair thin valve to seat contact area. I would not have believed them had I not seen it myself before I ok'd the 3 angle valve job. I would say that they were coming with marginal single angle valve jobs when I purchased mine early on. I'm glad I had them checked. Now if you add what I paid to have them redone and the cost of them then it puts you real close to a set of Eddy's made in USA......

not a sermon, just a thought.