trim both lower and upper faces @ 2 degrees then trim length about center line to 94 inches. Make leading edge spare 16 degree cuts - then to 94" . I marked all ribs with SCP and then set the outside ribs plum and square , added leading edge . I used a laser and every other tool i could think of to verify all ribs layed plumb on SCP. I will cut and add center ribs tommorow .
laser dead on SCP
you can barley see the lazer line on the second rib SCP but it shot nicely thru the entire stab