considering the ammount of stress that goes on the boat sometimes, I would imagine it's ok to lift it from just about anywhere as long as whatever you're lifting it from doesn't rip off or something. I dont know a whole lot about lifting boats out of the water, but the ones I have seen have 2 hooks for the back and one for the front. In this case you could probably hook one to the joint on the front where the front cable stay branches to the hull tips, and then the two back ones to the back part of the frame or something back there. Both of those places are definately capable of supporting the boat's weight anyway.