Very true tj, about stacking the batteries and thank you for your concern. I am going to be changing that in the near future but I am taking as many precautions as I can to use them safely. I just don't have the money atm to change it. That will change in a few weeks and then I will be done with stacked batteries permanently. (Bought them when I didn't know any better)
As far as the 2.8 working at 6v? It works pretty dang good actually lol the only downside to it, is keeping juice in the head. It becomes a little harder to do at 6v than at a lower voltage but it is doable. Just have to pay attention to what you are doing. Does it hit as hard as a freight train? Harder actually, but again, it was just another adjustment that I had to account for.
As far as the 2.8 working at 6v? It works pretty dang good actually lol the only downside to it, is keeping juice in the head. It becomes a little harder to do at 6v than at a lower voltage but it is doable. Just have to pay attention to what you are doing. Does it hit as hard as a freight train? Harder actually, but again, it was just another adjustment that I had to account for.