Radioactive farming before Danger in the deep

[estehmanis]

1. When you get Skull cavern invasion quest, delay finishing it as long as possible and use the days for ore farming.

A bit obvious, but some might not know this and might missed the opportunity to farm. I finished the quest as soon as I get it, idk I only get Danger in the deep nearly 3 years after I unlock qi room

2. Or use this baby Skull Cavern toggle [www.nexusmods.com]

You get 2 option:
- you could toggle Skull cavern difficulty after you finished the invasion quest
- it let you toggle the difficulty without having finished the quest first

hope it helps

[FafnirChaos]

Well you can always just do the harder version of the mines and just kill monsters for Radioactive bars, and collect the ore for magic bait.