I've got an old Parker with double triggers. Something over 100 years old, Damascus barrels. At the SClays range (now closed) a guest wanted to shoot the gun to day he'd shot a gun over 100 years old.

His guns had single triggers and he couldn't train himself in the few times he shot it to switch triggers.

All my shotguns have twin triggers. I wouldn't have it any other way. Now, three triggers? And three barrels? How much extra weight would that be?