Well said.
My biggest complaint about silver solder jobs as typically done on AR barrels is that they don't pass BATFE's "common hand tools" test.
The way I saw it explained is that if you can remove a muzzle device with common handtools and non damage the barrel beyond use in the act of that, then the Batfe would not consider the job to have been permanent.
I have removed many silver soldered muzzle devices with a 3/4" combination wrench.
That's a pretty "common" hand tool in my book.
Here is an example of one such barrel that had been re-parkerized after the silver solder job:
http://ar15barrels.com/tech/permanen...er-results.jpg