Decided I wanted to take the 6" out of the middle so none of my glasswork or fairing had to be close to an edge to make it as easy as possible. Took my time with a 48" straight edge laying out my tape lines for the cuts, the more accurate the cuts the easier the glassing and fairing will be.
Layout done and ready to start cutting
This is what I use for all my fiberglass cutting, its easy to control and makes really nice cuts in fiberglass with minimal dust and a very small kerf. This tool with the scraper blade on it is my go-to for removing rotten wood off of fiberglass skins when I redid floors and transom.
Cutting done, this is the piece removed
