Hi Don ...
Donned your fire suit yet ? lol.

Actually, I would say that vanagons and waterboxer engines do pretty
well considering the abuse many of them get.

re Chris ...
I installed one of his engines. I exchange a few lengthy and detailed
emails with him ..
he's articulate and highly competent.
   I have no problem  at all with anything he says due to the results
and workmanship on his engine, and how he interacted with me  - all were
rock solid.
  Heck ...I rarely give a high grade . I find 'weak' and 'not really
quite all the way there ' stuff from many  suppliers .....quite
commonly  actually.  What I'd call about 90 % ...
not 100 or 110 %.
  Chris is 110 % as far as I know. He is one of the very few
shops/vendors/ individuals I give  a high grade to.
He might be the only one even ! lol.
   I see so many things that are not done well, not designed perfectly
and on and on.
I can not think of one thing to criticize or complain about with Cris.
so if he says they're good for X ..
I believe it.