I would set up on the north bank where the ducks want to be using my lowest profile layouts and take extra time to dig them in and or mud and or grass them to match the terrain as much as possible. If the ducks are already regularly using that spot on the pond anyway, I would cut my number of decoys way back and only use my best ones and include a couple jerk strings. If something don't work right with that setup or you find the X you scouted is no longer the X for whatever reason, by not using many decoys initially, it would only take a few minutes to make a move if you see the ducks doing something different that morning. On a small private lake or pond like that if I am seeing ducks land in the same spot every day, not wanting to do anything to make it look different, I have been known to hunt that spot with no decoys before. I have been known to put a large spread of mixed decoys on the opposite bank and none on the bank I am hunting if the ducks have had a lot of pressure, but I doubt that would be an issue on opening weekend.
"Onward up many a frightening creek, though your arms may get sore and your sneakers may leak. Oh! The places you'll go!" ~ Dr. Seuss