Got the first stringer cut out last night. Was surprised at how easy it was to do.
My process was:
1. Mark out the lines/points of the stringer, according to the lofting plans.
2. drive some finish nails on the points
3. place a batten around the points/nails and mark the curve.
4. set the Circular saw base at 13 degree bevel and cut the length of the stringer.
Step 4 worked very well and I was able to cut the curve without a problem, as such I decided to cut the remaining angle changes the same way.
5. Cut a series of angle blocks on the miter saw to use for set guages on the base of the circular saw
6. Cut the increasing bevel angle on the bottom of the stringer by gradually adjusting angle of the base as I moved toward the bow.
When I was finished, the cut was very accurate and there was very little planing to do to get a fair cirve on the bottom of the stringer
I did notice when I layed out the lofting lines and employed the batten, that the mark at the 41" line which is supposed to be 6-1/16" appeared to be a little flat with the fair curve of the batten falling at 6-1/4" . Not sure 1/16" makes any difference in the scope of things or if my mark was off a tad or if the flat spot is intentional. Anyway, all the other marks were dead on with the batten.
The angle blocks worked real nice. Should make short work of the second stringer tonite now that I have the system worked out and one under my belt.
As a side note. My 9-1/2" LVL's were actually 9-1/4" when I measured. Found this a little odd. I plan to epoxy a 2X on the top of each stringer with some angle to provide a little aft slope in the deck towards the scuppers and get the deck up just a little higher since the gunnels are slightly higher .