I know these offsets (beginning of each chara offset of my calculation I posted long ago^^) and I know that problem with the weapon.
But I nearly finished the fully weapon-editor and amybe tomorrow I will release the update.

I' finish with implemantin and only have to test it tomorrow.
The structure of the upcoming weapon-edit feature is like ingame.
You choose your character and the different Tpe (Example Link and Hylian Sword or Master Sword, etc..) and you can edit all of that weapons you have of that type.
Change Skil-Kills, SKills, Base-Damage, Stars, Level, Legendary State and you can reset each weapon to its normally default, delete a weapon (if you have too much xD), or generate a default new weapon on a free slot
I atatched an picture of that upcoming feature

Please wait one to two days and it will be ready
EDIT: quesion. How is the real damage be calculated? A star give 10%? 10% of what, the current default damage-base or what?
And I will maybe update the player-unlock feature, that it will set an default weapon for that chara automatially.^^