I don't have either.

But I'd go for the Dakota Travellor before the Sauer. I would have bought one except it was too expensive for me and what I wanted from a multi barrelled rifle.

As the Dakota system has the bolt locking up in the collar attached to the barrel and not the action, it is a better system than where the collar is traditionally still on the action, and the barrel thread is loosed or interrupted to allow the barrel to be unscrewed more easily. These are allegedly subject to wear over time.

I can't vouch for the reliability of return to zero for those two rifles. I personally would not be worried about them being made well enough to return to zero and assuming good QD mounts are chosen as well.

For medium or larger bore calibres, they will be fine.

My switch barrel Mauser M03 with the .222 barrel I still always check after switching barrels. As I demand extreme head shot accuracy from it. As a estimates sometimes it is maye a half inch or an inch different. usually up and down only ??? This might be some very slight variation in the barrel's angle from the screws tightening or ? Or same for the scope.

If you want barrels with different case head sizes, the Sauer will be more versatile.

I always wanted a M98 switch barrel rifle myself. A Dakota would a good choice for that.