I'm planning to smoke a salmon fillet later today, but don't want to apply any of the marinades and/or heavy coating of rub that I've seen on the site because they all have a lot of salt/sodium, and want to avoid that due to a family member's dietary needs. I plan to coat it with some olive oil and maybe some spices, and see how it goes. Anyone had any experience/advise with smoking salmon without a marinade??