I think that I remember some discussion about this last year and it was determined that if you are bow hunting with a bow license you can not have any kind of a firearm in your posession not a rifle, pistol, or shotgun, or muzzle loader.. That would make it illegal to have both weapons during the early ML season. As I recall the discussion also in the late ML season you could legally have both weapons if you only have a ML tag but if you also have a bow tag you are illegally in possion of a firearm. It seems like one of the COs also said if you shot a deer with your bow and taged it with your bow tag you were illegal because of the gun. You would have to use the ML tag to be legal becasue either weapon is legal for that tag.
All this is to complicated for me, but I do know that you can not use a bow to fill your early ML tag.