First off, I know this is in other threads many times over but i've had quite a bit of difficulty finding specific answers that I can understand.
Background: I'm a fairly experienced climbing (few years) and have tried just about every type of climbing or belaying I've ever heard of EXCEPT top belaying. Not sure how it hasn't come up yet, but it just hasn't.
I'm heading up to Tettegouche State Park in Minnesota (amazing place). It is an equivilant environment to a sea cliff (just on lake superior).
How do I go about setting up a top belay and lowering the climber? Where should the anchor beaners be? Over the edge or above the edge? (if above, what do I do to protect the rope from the sharp edges). Where should my body be as a belayer?
I know how to set up an anchor safely, I'm just not sure where my body should be in relation to the anchor? Also, hypothetically if the climber is hanging and sustains an injury, how do I get them up?
Would it be best to use a rap-style belay device or GriGri2?
I just want to be as prepared as possible. Please feel free to include pictures if it makes it easier to understand. I am bringing a lot of novice climbers a long so safety falls on me more then anyone.