Now, lets look at shutting down jet engines in cruise.
Clearly,
segajet knows the score, quite unlike some others.
Having said this, and looking on the military side for the moment, I can recall only
one type that routinely shut down jet engines in cruise (at 40,000 feet), following which, they were expected to light up just fine (thank you very much) without fail.
That military aeroplane was the ...
Consolidated/Vultee (later, Convair) B-36.
'Tis a fact.
My next door neighbor (Colonel Jim) flew one, and it performed as advertised, with surprisingly superb regularity.
Not perfect, but
very good.