The random way unlocking parts works, combined with stamina, makes it feel like a phone game atm.
Smithing should pass time on the world map instead of forcing you to go out, sit around and go back in. Ideally, this would of course occur without loading screens.
Unlocking should happen in three ways:
1. You make a weapon, and get related parts to the ones you used. Using a tier 2 southern-style pommel should unlock either a different tier 2 (ideally southern) pommel, or a tier 3 one if lucky.
2. Smelting down weapons should give you a chance to unlock parts from that weapon. You shouldn't get sword parts from taking a pitchfork apart.
3. Master smiths should hang about in taverns, selling high tier components related to their culture.
A better unlocking system would result in the player having to go on a sort of "quest", travelling Calradia to find all the weapon bits. That would be infinitely more interesting than smelting random things to unlock random things.
I have noticed some other problems/weird things:
1. Sword grips are WAAAAY too long. If you shorten the shortest grips to their minimum, you just barely reach a length approaching something historical. This is in part responsible for the really derpy looking sword gripping. Most of the cultures' IRL equivalents were known to use very compact sword grips, and those lengths are impossible to attain. This is especially bad for Sturgia.
2. 2h grips can be put on one handed swords, and doing that doesn't let you hold the sword in 2 hands. Either remove them from the 1h section, or let 1h swords be bastard swords too.
3. Many stats are illogical. There's a tendency for narrow, pointy blades to have high cut and low pierce damage, and vice-versa. It almost like the more a weapon looks like it's for thrusting, the worse it is at that job.
Generally: The wider a blade, the thinner, and thus less stiff it is. Some surviving examples can even get floppy! So unless you increase the weight, a wider blade should be worse at thrusting regardless of pointiness. Likewise, narrow blades presumably are reinforced for better pierce damage, at the cost of cutting potential. This is unless they're just light, then yiou get less damage overall, but also less weight on a longer weapon.
Also, the longer a blade, the less stiff it becomes, and so worse at piercing. Thrust damage should go down if you increase length, instead of up. This also means gladius-type swords and daggers could be really deadly stabby devices.