Some observations on installation:
I've put down about 600 sq feet so far and it is really pretty easy. As with all flooring, make space to lay out 4 or 5 open boxes so that you're putting down random shades and patterns. Also randomly stagger the lengths of the first boards of each run so that you don't end up with "H" or stair-step patterns in the seams. For your first several rows, stand on the planks you have already laid so that as you hammer the next row in place, you aren't sliding the whole floor against the wall.
Make sure the locking mechanisms are clean and free of dust and debris. Set your 60" edge at the correct angle and GENTLY slide it to the left to line the 7" edge up (slam it over and risk breaking the locking mechanism on the 7" edge). I've been using about a 1ft long 2x4 scrap to use as a tapping block. Use a rubber mallet to tap the 60" edge with a tapping block going from right to left. You'll see the plank fall in place as the grooves on the 60" edge line up. Check that the 7" edge is lined up with the plank to the left then tap down along that edge with your rubber mallet. Don't be shy at this step - hit it hard enough to lock those pieces together (they are locked once you can't see the gray between the planks and you don't feel any lippage from one plank to the next when running your hand accross).
Supercore is also fairly easy to install "backwards." You will likely have to do this to get around doorways and such. Same process as above, just going forward to back but always left to right.
Q
Pine floor
Q