While I prefer short barrels for rifles I use in the field, your outfit looks like a very practical outfit. I like the ballistics of the .338 for big game, and I like the scope position on the rifle rather than being too close to the shooter.
Let us know if the brake lives up to it's advertising. I'm afraid I'm more than a little skeptical. If the brake works to reduce recoil, it must direct gasses towards the shooter making it noisy, but if it doesn't increase the apparent muzzle blast I don't see how it can reduce recoil, although it could reduce muzzle flip by redirecting the gasses upwards. If it does live up to it's billing, I'll have to concede that brakes do have a place on hunting rifles.
In the meantime I just have to remember the shot I fired from a braked .375 without the benefit of hearing protection to begin to tw twi twi twit twitch!