I just started playing hardcore mode last week.

I finished Act V on my Demon Hunter this morning and have been running adventure mode on hard all day. Presently I'm level 67 and diamond gem (resist all) where I can.

I've had some close calls on the last couple of rifts and know I have some fundamentals wrong. I need to read up before I go off and purchase an agricultural parcel of land.

Is there some sort of guide/FAQ with general strategy and toughness/resist benchmarks as to when to slide the scale to expert/master/torment?

I've googled my eyes out looking for one but have had zero luck.