Stripers should be filleted - with the skin ON. I use a brine that is 1 1/2 cups of water, 2/3 cup of pickling salt, and 1/2 - 2/3 cup of pure maple syrup. Leave in the brine (refrigerated) for between 2-4 hours depending on how salty you want the fish. Then rinse of the fillets, put them on oiled rack(s) skin side down, and fan dry until the pellicle forms. That is, the outside becomes dry with a "skin". Dry to the touch. This takes about two hours.
I use apple wood (maybe with a little cherry) and start the smoke at 125. After a couple of hours I raise the temp to 150 and smoke for another 2-3 hours. This results in real hot smoked fish, not just cook/smoked fish and will keep for at least 2-3 weeks in the fridge if vacuum bagged. I smoke Togue, salmon, etc. about the same way. For salmon I use a little more maple syrup in the brine.