sounds good so far
for mature compound, youll want a set of LK gears, the biggest factor in how much LK you have is gears and buffs
drilling and normal compound dont take a whole lot of DA for high success, drilling is 90, compound im not sure, but youll be wanting DA for damage anyways
for throwing, stick to big needles, since theyre light weight, so you can carry alot, and the damage difference from AP is nothing of greatness in my experience
and invincible drill is a must, detect skills are optional
a tip for drilling areas where the items are scarce if you dont use detect skills (or on fields where you cant..), turning the sfx off blocks the annoying DONG! when there's no item, but curiously not the chime for when an item is found, makes blind drilling alot less annoying, at least for me
hope that helps
characters current lvls: bunny: 17x/15x, fox 18x/17x, sheep 17x/15x

if humans despise what is different, should the different despise what is human?