With the new ability to craft specific weapons off of the weapon’s tree; is it more cost effective to go from the base weapon all the way up or is it “safe” to just do the highest tier when available?
it’s the same, though if you skip levels it’ll make change automatically with your whetstones.
if you don’t care, just craft to the highest. if you want to save gold/silver whetstones or want to use 2-3* weapons for leveling your weapon, do one at a time.
For me, it varies. Sometimes, though, in the case of some Void Weapons, I have crafted some t2s and used Steel Bricks, then enhanced to t3.
Be sure you got enough whetstones if you want to skip straight to t2 or t3.