I got interdicted by a Deadly FDL last night (I literally never saw a single FDL outside of RES before 2.1), which was one of 3 occasions. I was carrying 8 tons of some reward materials, but of course nothing that would actually help me.
I turn my tail to the sun, and he just loiters there, moving around a bit, but buzzing around me in supercruise. The SECOND I turn so my tail isn't facing the sun, BOOM: Interdiction. So that trick doesn't work anymore.
I get into combat with him, and manage to get the drop on him, as he was turning to face me somehow (he wasn't OVERLY concerned with getting position behind me the whole fight. Felt like overconfidence, as there were times he did so easily.), so I brought his shields down pretty quick (1 huge, 2 large, 4 medium pulse lasers...) as he fired off a few rounds at me, then decided to try to get position on me. He had a PA, so he was starting to wear down my shields pretty good.
By the time I get him down to like 10% hull, he finally brings my shields down, then I start seeing multicannon fire and missiles against me. Ok, sound tactics so far.
Now, he sends the "I've taken too many hits" message, but he doesn't disengage at all. Even as he literally gets to 1% hull, and his shields come back up. Seems like the perfect time to run to me. Nope.
So he manages to get my hull down to 53% while I'm trying to just get his shields back down and get the 1%.
I won the fight, but I'm not happy with the suicide-bomber AI they have especially when they start the fight saying its about cargo. I'm also not happy about getting harassed for like 30,000 credits worth of cargo while flying a Cutter, and spending 100,000+ in repairs.
I'm trying to do engineer missions and gear up for an exploration expedition right now, but I'm starting to wonder if I go back to my usual config with 720 tons of imperial slaves for trading, if I'll be interdicted by 5,000 capital ships simultaneously, trying to steal my cargo?