Trim guide Trim A - pin bone in Backbone outBelly bones off Trim B - pin bone in Backbone outBelly bones offBack fin offCollarbone offBelly flap off Trim C - pin bone in or out Backbone outBelly Bones offBack fine offCollarbone offBelly fat offBelly fins offTail piece off Trim D - pin bone in or out Backbone offBelly bones offBack fine offCollarbone offBelly fat offBelly fins offBack trimmedTail piece offBelly membrane off Trim E - Pin bone in or out Backbone outBelly bones offBack fine offCollarbone offTail piece offBelly flap offFin tissues offFully trimmedBelly membrane offSkin off (normal or deep)