Good condition damascus is just as safe if not safer than early fluid steel barrels. Have your tubes checked by a knowledgeable doublegun smith, feed them an appropriate diet of low pressure shells and enjoy.
The reasons for all the warnings regarding damascus tubes are well documented. The goal of the firearms manufactures then and today is still the same....sell NEW guns.
Ignore j0e....he shoots a Bennelli.
True I own two Benelli shotguns...but I have owned, shot and hunted with a Purdey muzzle loader a W C Scott muzzle loader and several damascus cartridge guns a WIlliam Powell muzzle loader and a few more.
To say something that's 100 years old plus is as safe as a modern gun is stupid.
The ones that blow just blow...when no one can say.
It's like Russian roulette just with more than 5 empty chambers.
Was I scared...no I wasn't scared.