I'm going to feel more comfortable slapping them on after my machine shops had their way with them. I've known Ted since I was a little kid in high school touring his shop with my auto shop class... You could say he's been doing this for a little bit...
That's cool, you need a machinist you trust. I've had so many heads apart, I trust me :) Only thing I can't say is the quality of the SM valves, springs, retainers and keepers. If they let loose, I can't help that.