would like to post my 2ct, worth on the instalation of the laker leading edge.
we used avation snips to do all the cutting as the fiberglass is very thin and we just made a stright cut top and bottom with no scallop. also we started the rib stiching after the l/e.
to lay out a stright line we slid the l/e on the wing then got a mark at each end and used masking tape to lay the line stright, if you use this method to get your stright line make sure to mark the tape with arrows to show which side to cut. no i didn't do it this time but it is very expensive to learn the hard way.