Thank you for the comments.
Bosch has some really extraordinary blades for their jigsaws these days. One of those blades and my reading glasses and I was able to accurately follow very fine pencil lines without any chipping. The newer Bosch jigsaws also hold the blades very straight so I was able to get fairly square cuts. It also helps that I used a jigsaw extensively when I worked as a boatbuilder, so I feel comfortable using one.
I also like ash very much. I used to use it a lot in boats in Rhode Island, so I was pleasantly surprised to find it in the Bay Area at a very reasonable price.