No no sorry
Don't pull faces at me barit1!
A loss is a loss of course of course. But you began it with your intriguing discourse on "loss".
Let me put it this way. When engine manufacturers quote uninstalled they know that broadly speaking uninstalled performance is not their goal, ergo parameters unisntalled-wise are more likely to be off-axis than on-axis.
So now you state enigmatically that not all losses are thrust "losses" and mustering feminine irony I suggest coyly that I could've told you that. And ask about tsfc. But you immediately go back to losses again.
Obviously you put a load on a machine by adding ancillaries and to maintain N1 you have to add more fuel. I am asking if that in doing so the engine now becomes more on axis and tsfc actually improves?
Wicked woman that I am my doctoral thesis got me my job with P&W. But right now, I'm doing the interview, my rules, you're the candidate.
I'll buy lunch, you do the wine. But answer me. For once I sense fun in an otherwise dry argument.