Well the og faulhaber motor is no more I had a halo bolt so I took the motor out of that... now its alot smoother I then which back to the 4mm throw and lovely. Nice quiet with a great throw. I ended up drilling a hole in the top so I can change out the cams without opening the body.. I'm tattooing myself tomorrow so I will give it a spin out... works well on the practice skin I make from molding silicone.