1.) Deck delamination:
I've succesfully done the "drill hole pattern, inject epoxy" method of delamination repair on a friend's Hobie. In working with other projects I've started to get into vacuum bagging. Is it possible/reccomended to use a bagging system in conjunction with the hole pattern method? I am thinking along the lines of drilling the holes, injecting epoxy, and covering with a half a bag sealed around it's perimeter to the deck. I am hoping this would evenly distribute the epoxy and hold all the layers together better than clamping without causing deformation. Please advise.
I'm not experienced with vacuum bagging, but I would think it would be difficult because you'd be sucking air up from inside the hulls, making it difficult to get a good seal. Am I missing something?
2.) Holed hull:
My trailer has caused some damage to my starboard hull, which when (snip)it as well. Is it just styrofoam or some funky corecell/divinycell material?
I'm not clear on exactly what happened to you here, but anyway you have some hull damage, right? If you remove the damaged bits and apply a suitably strong repair it should be fine. Take, for example, the repair we made to the keel of my friend's Sunfish. (link)
3.) Hull to Deck Joint:
My hull to deck joint (before the hole) was the main cause of water (snip)
I have a very similar repair in mind for my boat. I dunno about grinding a V in the joint because I wonder if it wouldn't screw up the lamination some (I could be wrong) but I plan to lay a bead all the way around the joints on both hulls. Hopefully that will stop my leakage as well.