My dealer service writer implied that it's a greater than 1% issue by far and he used the dreaded recall word as a possibility. He was surprised that at 34,000 miles of hard daily driving that I had not brought my H3 yet for the problem. Sounds like there's a 30 day wait for entire head assembly that gets replaced these days.

If mine blows shortly after warranty expires, I would expect GM to cough up help, otherwise end of business as far as I'm concerned.

No, the solution for the head problem is not to buy a 2007 and suck up thousands of dollars in depreciation loss on the 2006.

I'll keep driving my H3 (almost) like I rented it.