I don't smoke much fish, but I had a lady at work ask for some smoked salmon for her husband. Cost was important to her, so I got frozen fillets at Sam's. They were cut in chunks about 1 1/2" wide.
I smoke on a 100, and am saving for the new IQ controllers so cost was important to me, too. I don't smoke enough seafood to afford the racks. I did have two pizza pans with holes in the bottom that would fit in the FE100. I brushed with olive oil, rubbed with Tones rosemary/garlic seasoning and put the 100 on smoke. It ramped up to about 140 then dropped off to about 98. At one hour they were done. Seeled two chunks per pack using a Foodsaver, and they think I'm a chef.