Thank you very much for the clarifications. I've gotten used to the typical yari used in classic jidaigeki films (almost always su-yari, since in the movies the yari is more like a secondary weapon). But what a joy to know that they are a world as complex as that of swords and naginatas. Again, thanks.
I was wondering: with sankaku yari as thick-headed as this, wouldn't they have trouble thrusting and stabbing? That thickness would be more advantageous for cuts and sweeps, but for thrusts? I'm not stating anything as fact. I'm just curious. Thanks for the thread and all the posts about spears you upload.