I've been making sushi for 38 years, and I'm still learning. You have to consider the size and color of the ingredients, how much salt and vinegar to use and how the seasons affect the fattiness of the fish.
Masaharu MorimotoJapanese chefs believe our soul goes into our knives once we start using them. You wouldn't put your soul in a dishwasher!
Masaharu Morimoto