Re: Hoisting an inflatable dinghy
Lifting points that are glued on, will naturally try to be pulled off when you lift by them. If you've got any duffel bags around, take a look at the handles. The better ones all use a continuous piece of webbed fabric that goes UNDER the bag and then comes up over it, so that the weight of the whole bag is in compression on the straps--not just pulling them off.
Same thing, you could run some flat webbing (2" or wider) under the dingy, glue it all the way, and then let it come up into four lifting points (two bow two stern) on the dink, so that when you hoist it up, you are lifting straps that run underneath it, taking the weight in compression instead of trying to pull the lifting points off their glue joints.
If your dink is on the davits and fills with water (ever stuffed the bow and taken green water clear over the boat?) glued-on lifting points will be sorely stressed.