I have some rotten wood in the keel sump. I am going to replace the stringers that were installed when the verm job was done a long time ago. I have owned the boat 2 years. The one behind the keel is delaminated from the floor too. Questions: What wood material should I use? I feel like I should keep the boat in the water to remove stringer and glass it in, I think the trailer may push up on the keel too much and change the shape, any thoughts? I plan to be super safe with any waste.