Throughout testing daggers where i used various materials known for weakspot chance such as incisium, quality leather, and most metals up to tungsteel including cuprum and jaedite i noticed effectively no difference between the various dagger hilts and blades with maybe mercy blades and rogue hilts being the best tho it might just be in my head as i did 200 stabs with each combination on a target dummy and observed a 10% chance to weakspot at most from the averages i was using a 126 dex veela with the weakspot clade. the materials i chose seemed to have almost no impact and it makes me have to ask if weakspot modifiers are even added to crafting materials at the moment.