I also keep the floor zipped in. If you set your ShiftPod up then on the back of one of the tags near the floor you'll find your serial number. Warranty registration is
here.
Center pole is for heavy weather. Especially snow. When putting in the floor there's a small fabric bucket in the floor for the center pole to sit in to keep it in place. If the pole does wear a hole in the floor the bucket wall still keeps the water out.
The blast shield you stake them. For wet weather I used the stakes that hold down the storm flap at the base of the tent. When it's dry I stake them out away from the base to get better airflow.
I also got 2 6' fiberglass poles that also go in the storage bag and a discount/demo rainfly from Hennessy Hammock to shied an entrance from rain.