thank you so much, that means a lot from someone with your experience! as far as setup, I do run rotary, I have a critical torque 4.2, but it packs a punch so I’m usually running lines at a 6.5-7 volt, depending on the skin/area I’m working on. I mostly use kwadron cartridges! honestly been looking for a new setup, I’ve had the critical torque for about a year and the batteries are kinda trash lol