There was a discussion on this before, but I believe the $600 fee from White Lab is more than it would cost to send it to England to be proofed, although you'd likely get it back quicker. The CIP superior proof is 19K +, which is very much in the SAAMI ballpark.
Mark, Greg Tag--who used to post here--was assembling data on Flues barrel/frame failures. Per an email I received from him, 13 years ago, he had 8 reports at that time. And that's only one model from one sxs maker, although there were a bunch of Flues guns made--and the general consensus is that the light 20's in particular are prone to frame failures when fired with loads for which they were not built.
I can't say any more at present, but I know of one barrel failure on a modern sxs from a well-regarded European maker. I did not see the damage to the gun, but I did see the damage to the shooter.
As for knowing what's best for others, I'm all for others knowing what's best for themselves--and not passing on potentially unsafe guns to others without full disclosure.
Last edited by L. Brown; 12/27/11 07:38 PM.