My view for what its worth:

You need two DG capable rifles if you are going DG hunting.

The primary you will carry day in and day out til you have succeeded in taking your DG quota. You do not want a scope for this rifle while you are DG hunting.

The tracker can carry your scoped medium bore but still DG capable rifle in case you might want to take a longer shot at, say, a really nice buff or deviate from your DG hunt and take advantage of targets of opportunity. If its close and quick, your big DG rifle will be more than adequate, even shooting solids. If there is distance, trade off for the medium bore with the scope if you like.

When you have bagged your DG quota you will be carrying the medium bore, with the scope attached. Bring a spare scope for your medium bore and you have all the redundancy that an expensive, far away DG hunt deserves.

Loose the scope on the medium bore if your big DG rifle goes tits up, btw.

This is my program and it has worked well.

JPK