in case i caused some confusion, i think i didnt not explain myself properly.
1, MS ewgf is exactly the same as CD ewgf, they look the same, their properties are the same.
2, the only difference between MS and CD, as far as i know, is that MS-CD can not be canceled with f, there for it can not be used in WD. and this seems to be only in T4, i am not sure about it in T5.