The owners manual states (in case of my boat, B46) that the aft lifting point has to be between saildrive and keel fin, and the front one in front of the keel. Check your manual, but i think it should be pretty the same. The sticker you mentioned might be the faded mark for the saildrive position, but i've seen boats with position markings for the lifting belts, which might be faded too. I would assume the belt markings, if you have one sticker in front of the keel and one aft.