There are one handed planes of both type. Say block planes. The standard euro block plane is gripped behind the edge, the standard Japanese one is gripped in front. When you pull the Japanese plane from in front of the edge, the edge catches just as an anchor does, and wants to work deeper, by geometry, not weight or technique. Euro planes have the power behind the edge, they want to polevault out of the cut, causing chatter. We add weight, and perfect our techniques.
I use both types in the shop. Each will work perfectly well. I just recently finished a jack plane that is a bit like a clark and Williams, but has an old Lee valley japanese blade in it. It is part of a set of three jacks I am fooling with
None of this has anything to do with adjusting blades. Japanese blades aren't any easier to tap straight than any other. They have the advantage of just dropping in place perfectly, so no adjustment is required. And once you have the skill to cut the plane beds like that, you have long since stopped worrying about lesser things.
