Glad rag,
Cheers for that but let us pray that your mention of 'high in the cruise' does not draw (like moth's to a flame) the gaggle of core icing argumentalists across from the G-YMMM thread especially as the more determined of them is from that Scandiwegia!
Imagine the scene :
AIIB (Geese Division) will now call Flying Officer Honk to give his evidence to the panel....the CVR shows that you were commanded by the Quacktain to feather the port engine after the FADUCKS appeared to malfunction just after you squawked FL150
I'm sure that the usual suspects on here can develop this in a much wittier style than myself....
Eagle