I have alot of work done....alot. I go to the same artist because in my opinion he is the best! We always use a coil machine. This last four hour session we used a rotary, same artist. I usually sit all day seven to eight hours. The rotary hurts more. I would use prefer a coil anyday. The quality of the work is the same but I have a solid bruise on my chest and I never bruce. Coil all the way if pain is your concern.