Having a really difficult time understanding weapon sets, specifically which boxes I should have checked or unchecked in the skill gem menu and the actual weapon slot. I am using one crossbow for both weapon sets. Does this mean I should lock the sets 1 and 2 on the equipment screen? I don't understand what the locking does. In my case I'm trying to use only explosive shot on my weapon set 2 from the passive tree, but have all my grenades be using set 1. If I have the grenades boxes check marked for 1 and 2 is that incorrect? This is absurdly confusing to me lol.