[Eru]

I think that the biggest problem with the guarded mine is that it's too small for more than 2-3 miners to be there. I've seen it when it has like 10 in there and there's no ore to be had. Your skill will go up super slowly, you'll hardly get any ore, and you'll end up wasting a lot of time. I tried it out on my Mortal to test it out and it's suuuper slow. If you go find a mine that noone else uses that PKs aren't checking on, you skill up super fast and get TONS more ore. I've been mining about 12 hours total so far over the course of about 2 weeks while doing homework and I haven't seen a PK yet.