"While true, the differential is infinitessimly small."
Agree, but better none the less. For some, it doesnt matter if the change is discernible. Mentally it makes it better and thats all that matters.
"Different physics. The inner tube starts off cold, and moisture condenses inside the tube."
Also agree. Would also argue that what moisture is produced and drops from the air stream during the smoke is not allowed to absorb into a metal tube. Briar affords that opportunity, however small it may be.
For the record, I dont subsrcibe to the thought that Lovats provide a superior, drier smoke - I cant tell the difference between lets say a billiard and a Lovat based on briar to ebonite ratio. But I have heard the argument from others.