Have you sonic checked 360 or even 318/340?

Bloody sonic tester...I have a BHJ and it ALWAYS brings the pain...
30 years ago when cores were abundant it was no big deal, but now the crap we wouldn't have even thought about back then are gold now..
I think that a 340 block at .060 without a spot under .125 is doing pretty good..360's without a .090 or less spot somewhere is doing pretty good..
The days of 185 to 220 are long gone...IMO
I've been jumping over 2 340 blocks that have .185 to 220 wall after .060 since the early 80's.More than likely end up giving them to a customer just to build something neat with them..