: for what it's worth. I use a metal ruler as a straight edge and use a utility
: knife. Start lightly and get a little path about an inch. Keep working it
: and burrow a slice into your line. Then push the blade in, take deep
: breath and pray.

i've been recutting skeg holes(changing my mind on width) and used something real similar. got a 2in by 4 or whatever in pc of doorsking and sawed into it for halfway. then ducttaped the drskn form on the line(fold it down to align) sight into the kerf to the hatch cutout line. (the tiny handsaw has no set to the teeth.)

then the taped down doorskin, holds both sides of the sawblade so it doesn't wander to screw up the good stuff.

worked ok for the longish straigh parts of the skeg hole and would prob be ok for starting a hatch cutout if there was anywhere a straight portion.

-mick