OOPS! Too much grinding

[JohnC]

So after months of too much work to get anything done on my project, I decided to spend the day getting the transom ready for the new core. I found several voids in the transom that were no doubt that way from the factory layup (you can kind of see them in the first pic). It looks like 2nd layer of matt (I'm guessing here) was not bonded to the outside skin/gelcoat layer. I got a little happy with the grinder getting rid of all of the voids and actually put a hole in the bottom of the boat (3rd pic). Now my dilemma. I went too deep to retain the structure of the hull in this area. I was thinking I now should modify my lamination schedule to put back the glass I ground away. I took the stringers back about 28” from the transom (2nd pic); I was thinking of going back with 1.5 oz., matt then 1 layer of roving wrapped around the corners with about a foot of tabbing. Then I would lay in 1 pc 1708, then the core then a few more pcs 1708. I made enough room to put lots of long tabbing, at least 2 feet. I feel like I am pulling a solution out of thin air and I would rather ask the question. Is this the right fix? Should I do anything different? Any help is appreciated.