I love your rifle! Interesting history to be sure. I enjoyed reading the occasional Jack Lott article in Guns & Ammo as a youth back in the 70’s. The muzzle brake becomes a non issue with the screw in thread protector and while the purists scoff at Magna Porting I have found unlike muzzle brakes, there is no discernibly louder sound with Magna Porting, it is nothing like a muzzle brake.
Of course the felt recoil reduction is less with Magna Porting than a traditional muzzle brake and with only 2 ports on yours instead of 4, increased sound is a complete non issue and excellent to control muzzle rise for quicker repeat shots as you stated. A favorite gun writer of mine, the late Ed Matunas mentions this in his book, Big Game Cartridges & Rifles. He was not a fan of muzzle brakes for African hunting for all the same reasons mentioned here on AH over the years but he was okay with and favored Magna Porting on the big bores. He felt the slight increased decibel level with Magna Porting was inconsequential and was an excellent enhancement on a DG rifle for reduced muzzle rise for quicker follow up shots.
Well, I leave for a Cape buffalo hunt in less than two weeks, so not in the market to buy before I leave (not sure what total expenditures will be, additional animals, etc.) and I prefer 14 “ LOP but this is a rifle right up my alley so I’ll reach out to you after I get back Sept 23rd, if it’s still available! I bought from Krish so he can vouch for me. GLWS either way, this is a fine DG rifle.