They're easy, man. Fear not. <thumbsup> A little further up, someone was thinking about the G SDE trigger. This will simplify things some, in perspective: * The SDC and SSA are the same trigger. The SDC has a flat trigger, and the SSA is curved. * The SDE and SSA-E are the same trigger. The SDE has a flat trigger, and the SSA-E is curved. * The SD3G and S3G are the same trigger. The SD3G has a flat trigger, and the S3G is curved. Operationally and functionally, those compared triggers have the exact same characteristics between the two - it's just whether you'll like a flat trigger surface, or the traditional curved surface.