Yep...look at the angles as Bees and Zak says. This is true for any shot placement, being in a tree, shooting uphill, or downhill. Where I hunt you get more angledor elevatedshots than straight on shots due to terrain.

A good way to look at angles is suspend a ball about the size of a deer heart inthe middle of abox frameor 3-D target (take out the vitals section).Place your arrow at different angles thru the box or target, letting it"peirce" the vitals. I learned this trick at a bow classI attended last year, and it really gives you a good idea as where you want to draw your bead for the optimum shot on an animal. For example, on a quartering away shot from an elevated position, you would aim for a spot behind the ribs just under the spine so your arrow passed thru and into the lung/heart area.

Ipersonally rangeeverything from the ground beforeIgo into the treestand, although there is debate on if it makes a difference or not. With todays flat shooting bows, anything inside 30 yardsI doubt you'll see much difference.

I have heard that you want to aim low in case the deer "jumps" the string, but once agian not only are the bows flat shooting, with the speeds of the bows it would not make a difference in this case either.