With any archetype that isn’t a 180 rpm you have to pace your shots. For example Ace of Spades will fire 140 rpm, but if you shoot wildly as fast as you can, it’s very difficult to get headshots— and you will ghost bullets because of it. 140s especially require pacing, although devils seems to be somewhat of an exception. 110s don’t require pacing so much but it’s because they are very slow to begin with. I got a nice roll on the Duke but I can’t tell if it’s any good because I’m still reloading it.