You seem really opposed to the barrel porting. Each to his own, I think we all have our preferences. It ocurrs to me, that with the judicious use of a bottoming or plug tap, you could use some of the filler screws, used to fill sight holes in barrels, to plug the ports. A little time & effort would be all it would take. I don't know about the Ti,though. I don't think you could tap titanium. Maybe you could peen in some bird shot? Or, just fill the holes with epoxy, colored to match?