If like me you cold smoke whole salmon you may find the fish will not fit onto the rack so what I do is firstly trim the fish by cutting down the flank, taking off about 2" from the tail and squaring off the front end. This then gives you a fish that should fit onto the rack quite snugly.
With the trimmings, take off the skin and place on the rack alongside the side of salmon. In taking off the skin this will allow the smoke to penatrate both sides giving the trimmings more than full flavour.
When smoking is finished put the trimmings into a food liquidiser along wih cream (approx 12oz fish to 1 pt double cream) a squeeze of lemon and a tsp of horsraddish. Whiz until the mixture forms a stiff consistency and then you have a fantastic Smoked Salmon Pate.
No waste - Cheers WW