Done many Comps in my time on C130s - always rewarding to be involved with.
My only personal involvement was many years ago stuck with a u/s Herc on a lump of rock in the middle of the Atlantic. I was advised by my parents that my sister was scheduled for transplant surgery very soon and could I get back to see her before she went under. Delighted to say that Ascot Ops replied that no I couldn't go back as they'd then be a crew member down for the broken Herc. Fortunately the sqn bypassed those morons and we forged our plan to get back. As it was the surgery was cancelled at the last minute and I got back to see her. She subsequently died during transplant surgery a while later. Consequently I've always felt compelled to do everything I can when tasked with Comp As. I've also also harboured a deep wish that the Sqn Ldr on Ascot Ops that night has since died a horrible death.