Here is the scariest part. This is looking towards the center of the boat once all of the balsa was cleaned out of the initial section. Even though the wood is showing less damage overall, there is a spot of wet rotted wood that is basically forming a tunnel against the outer skin of the hull. Water in this area can be pumped into other areas by the hull pounding. I found the adhesion to be very good, so I'm hoping this doesn't go far. But the cutout has to be expanded until I find the end of the damage. I made quite a few cuts, expanding by about an inch at a time, which is the amount that my vibrating saw could easily remove.