Question about sword upgrades...

Ok.. so i found this gold butterly sword.. its pretty badass.. 15-22dmg, dmg+15% while heath is above 50%, hp +30, double adrenaline on hit (3%) chance.. i wanted to add a vampiric sword hilt (life steal 5) so it can be the uber of the uber.. and it says its going to replace the old upgrade but it doesnt say which one.. I WANT it to replace the double adrenaline.. but someone told me it would replace the +HP.. does anyone have the answer to this? thanks ahead..

your sword is now called Furious butterly sword of the fortitude, furious decides the double adreline gain, fortitude is the 30hp. the 15%dmg over 50% hp is the intrinsic attribute of the sword.

Your vampire hilt is called Vampire Sword Hilt, so it will replace "Furious sword hilt". Of course if you have a "Sword pommel of the defense", then you could have the chance to use that +4 armor pommel to replace the 30hp one.

But who will?

Components are either a prefix" or a suffix for the weapon. For swords, hilts are for the prefix and pommels are the suffix.