So should we train primarily for grabs of our right wrists? In randori, should uke concentrate on grabbing nage's right wrist (unless uke knows nage to be left-handed, not an issue for samurai)?
I'm not trying to be a jerk (I can do that without trying). I'm trying to find some consistency in the many opinions I've read about wrist grabs, and aikido in general.
You should grab the hand with the weapon in it or that is drawing the weapon, weather that be right or left. But Aikido is taught mostly from the perspective of being the guy with the weapon. So keeping your weapon hand free is a matter of importance.