I have fully chamfered and fitted four full length stringers. Six more to go. As usual, the work goes faster as you get used to it. Chamferring the ends against the stems is best done with the pull saw. Sanding is very slow with the multi tool. The stringers have more twist in them as they approach the keel, which is relatively easy to allow for with the saw, by lining it up parallel with the stem.
The lines of the stringers look a little depressed towards the ends. I think I misread the drawings slightly when setting up the keel/stem backbone. We live and learn.