Gentlemen...
I have a vew comments.
As a user/hunter with a couple of British Double rifles from before WWI, and using a couple of traditional German Drillings....
I appreciate the FINEST hunting guns ever made by man...
HOWEVER...
The Blaser Combo Guns are NEW TECHNOLOGY. Truth be told, for best performance, there should be NOTHING between the barrels...
And they should not be joined tightly together anywhere except the breach.
Blaser puts the "rubber stuff" between the barrels, because most combo gun users, are not ready to break from tradition, YET.
Blaser Combo guns DO what traditional combo guns cannot do, ie have consistant zeros as the barrels heat up.
My Blasers shoot as good as most bolt actions, without removing the "rubber".
But if you gun shoots better "naked" then DO IT.
I do not think I would spend any extra money to alter the "Blaser System". I would either shoot it the way it is or remove the "rubber".
Because when it comes to hunting and shooting at game "BEAUTY IS AS BEAUTY DOES."