Speedmaster aluminum heads

I did, that's just another reason I take them apart, I like to know what I have and there isn't one set that I've seen that had the spring heights right. That said my trick flows have been the nicest heads yet but even then I had one with a bad head surface, summit immediately sent out a new one with a call tag for the old, great customer service.
Wasn't that just ridiculous? Talk about zero quality control. But that's the world we live in.