Never got the idea of "powering down"...Mostly a sci-fi B-Movie plot device...
Much like "i'll extend my gear and flaps and he will fly right by" or "I'm going ballistic, he will pass right by us", generations of cannon fodder grew up on those movies
Good for the rest of us, easy kills.
Even if you had "powered down" any radar would be pick you off...unless you hid the ship or had stealth. Power off might hamper electro-magnetic detection methods, but even a simple IR device would see you since you would have tons of risidual heat. God i hate realisem threads
At least i hope that in FL the fights won't degenerate into a circle fight.
I've seen things you people wouldn't believe. Attack ships on fire off the shoulder of Orion. I watched C-beams glitter in the darkness at Tan Hauser Gate. All those moments will be lost in time like tears in rain. Time to die.