Today while I was adding my Folembray 4345, CD 370 foreign power piece to my inventory book, I noticed that it has an inner sleeve that is marked: 4345, just like the 3-skirts are marked: 4345 My question is, since this insulator has 4-parts to it, 3-skirts and between the middle and bottom skirts, it has this inner sleeve, should it be listed as a 4-part multi foreign and have a new CD number assigned? In my opinion, it is not a 3-part like my CD 370 Armorlight unit..... Your thoughts please. Thanks, Tom