Samurai Bow: Relic Vs Ambuscade

I don’t play samurai that often but did have a question about which would be the better bow for one. Yoichi will give a bunch of accuracy and attack, as well as namas arrow for more chain options, but Ullr provides stats for your gkt/polearm weaponskills. 119 relic at least gives good arrows, best I see Samurai can use, so at least I’m not stuck with eminent arrows (good luck finding beryllium arrows, and I went alchemist).

Shouldn't be using a bow to make your WS for main hand better. The reason to really make either bow is to open up SC for better range DPS on a target you don't want to melee. FU and a few odyssea NM come to mind. Normally this really only comes into play for lowman stuff.