Slight stringer rot at drains - best options for sealing?

[Enyar]

Hello everyone,

My boat is in great shape and not to the point of needed a full restoration quite yet. That being said there are a couple areas where holes were drilled in the stringers that were left unsealed. The wood has not turned to mush but it's definitely wet and merits some attention. I was wondering what the best practices were to prevent further damage and also have some questions.

My plan was to overdrill the holes, grind as much wet wood as I can, dry as much as I can, and fill with epoxy/fiberglass cloth as best as I can.

Questions:

1. Let's say it's a 1" drain hole through the stringer, would I lose strength if I overdrill this to 2" to try to get to better wood/bigger radius for laying glass?
2. Best practices to use epoxy "peanut butter" and fiberglass cloth to seal?
3. What can I use to dry the wood? dehumidifier and alcohol?
4. Whats the preferred tool to get some of the wood out, a dremel?