Skarrow and a bunch of his friends did a test on this. I think it was 125 or so drops with every ghost mod equipped and it seems that they are working BUT, they aren’t very effective. With no mod you have a 1/6 chance of getting the archetype you want but with the mod on it seems to change to 1/4. He said the testing needs to be a lot more intensive for more accurate results but this is a good indicator that the issue isn’t that they aren’t working, but the fact that they are tuned too low. Just another method of artificial play time.