[EP3] How to change jewel successful %

[Nymphetamine]

Hi how the title says what can i do for do higher the % success for get the jewels in the item?

I am using the new jewel system and for example i want to add to a wep jewels lvls 10 and give fail too much times?

Thanks for read!

Are u aware of the fact that they are used to dupe?

I wouldnt think to a way to make the success of it higher, but a way ot disable this