I would check the leather that you are referring to. From my personal collection, I can tell you that my Dark Gray MAM does not need conditioning, nor have I conditioned it. It quite simply does not need it, as it is a smooth, slightly-glossed leather. On the other hand, my chocolate MA scratches all the time! Even if I simply and gently run my fingernail over the leather, there is a scratch remaining. It is a bag that not only needs conditioning but actually benefits from it as well. After a good conditioning, the Chocolate MA regains its luster, its softness, as it has been gently buffed of its scratches.
HTH!