Bnystrom, “set” is correct, not kerf. The blade I mentioned with no “set” cuts cleanly on the up-stroke, but can cause some chipping on the surface. A jigsaw with zero clearance inserts mostly solves that problem, even when cutting plywood or veneer. A bandsaw cuts on the down stroke, chipping on the bottom. Fortunately, that issue is inconsequential for paddle making.
No argument about grain, you certainly clarified the topic. I carelessly uses the term rift and quarter sawn interchangeably because I consider the terms more about how the log was milled. Furniture grade wood usually favors plain sawn with the cathedral pattern in flat panels; however, door stiles and rails are best with rift cut for stabity. Right or wrong, my shop uses the term quarter sawn to describe wood with distinct figured patterns, such as ribbon mahogany or the vibrant medial rays in oak. Ordering bulk lumber can be a crap shoot. Sorry for the confusion. This is what you describe:
I know nothing about Greenland Paddles, so here’s a question. If Greenlands are paddled at a slight “canted” angle, not flat like a Euro, wouldn’t it be serendipetous to get a rift cut wood blank that more closely matches the direction of force.
Tools are great. Bandsaw are great. I “watched” a properly set up entry level $750 Delta bandsaw with a quality blades slice 5 inch thick wood as thin as plastic laminate ± around .040 inch. I can’t do it myself. Everybody should have a bandsaw, but many live without one.
Regarding jigsaws - Bosch tools are fine, but I was told Bosch had a model equivalent to the Festool jigsaw. I found that hard to believe, and you confirmed my belief. It doesn’t matter to me what tool a person owns or prefers, but a sales rep told me how wonderful the Festool jigsaw performed, and said, “Try it.” Yeah, yeah, so I did. I cut jigsaw puzzle curves in a 2 inch thick plank of white oak. The tight S-curved plug dropped without resistance, which said it all. Checking the cuts with my accurate combination square combination showed the cuts were dead square. I bought the jigsaw on the spot. Doesn’t matter if anybody needs or wants one, or if it’s as good as a bandsaw. I wouldn’t trade it for any other tool. You still have to know how to adjust the blade guides and push it through wood without exerting side pressure - same as a bandsaw. Problem with a jigsaw is the limited depth of cut.
Tools are just time-savers. The tool doesn’t make the artisan. Some of the most intricate furniture was created at the end of the 18th century with mostly hand powered tools and profile planes. There is a PBS program called The Woodwright’s Shop with a quirky guy called Roy Underhill. It’s amazing what he can do with crude tools.