I have a +10 weapon, and I want to enhance it to +11. Idk if I should use the Basis Enhancement or the Aura of Big Success. What should I use?

Aura of success has higher better rate (duh) but that doesn't mean you will succeed on it, you can fail on aura of success and succeed on basic enhancement, its all luck.

I see. I'll try using the aura of success, then. Thanks!