Dunno if yall know or not but after your gears get past 28, try to focus main weapon first then sub. Then for armor, chest, helmet, then either shoes or hand. Shoes and hand gives out +3 cp each lvl only.

I go back and forth and in a little circle for the armors. Getting the resonance bonuses should be a priority. Put every black stone into one till it hits 100 then move to the next. I have a huge stack of black crystals as I'm pretty sure they're in the game to drain silver from the economy.