I've had similar bad luck with A1, just looking for a bolt last week. Granted its not nearly as bad as yours but the RNG rain cloud followed me in a unusual manner. I ran it on wed and thurs, so many times I nearly capped my eso tomes on it. I only had two experts in to that point. I must of went 25 times, I'll admit I didn't keep track. But it was all i did for two evenings. But the funny part is. I broke down and joined a A1 farm group. Because I know that "usually" you will come away with your drop. The first drop there were two bolts. Both my rolls on them were below 10. We ran it 5 times. I was the last person that even needed anything in the group. So I was guaranteed my drop. But as surprising as it might be, and unbelievable, I rolled a 99 on the loot. I was completely floored. I must of had this maniacal laugh going on for 10 mins. And spent the next two days telling the story to my FC over and over again. Because of how insanely stupid it was. I know during all those DF runs I had many many rolls below 10, and kept feeling depressed.

I wish there was some kind of system that could detect your rolling on the same loot over the course of a week, and gradually increase the RNG curve, thereby increasing your chances over time. The only thing this could potentially cause a problem with is the number of runs you get where you get it on the first try, because so many other people have there RNG curve increased in your group. But in the end I think it would be more beneficial that way.