Pulling the head is not very difficult. In fact, it'll make pulling the 235 easier, smaller and lighter.
That way, I can really make sure, beyond a doubt, if it was due to a warped head or a cracked cylinder. If it's just a warped head, then the 235's got a new lease on life. But I'll still buy the 292 just because $200 is a good deal.
Thanks for your feedback...it is worth verifying before going beyond the point of no return. I'll post back here when I know.