smallerWoodToolDurability option affects wooden tools, except wooden pickaxe.

Config:

    B:smallerStoneToolDurability=true
    B:smallerWoodToolDurability=true

GT: gregtechmod-v414.25 (.24 too)

Log: latest.log - pastebin link

UPD: With stone tools works as intended.

It works.

With disabled option

With enabled:

P.S I will recomend you to update your Java, update 51 is pretty old, some stuff would work wrong.

Actually, I was talking about Wooden Pickaxe, not Wooden Shovel 🤔

Lmao, there was typo in names, it was nerfing stone pickaxe twice....