On that nice back piece what part was started first with the rotarys-would be intresting to study the pic and see your progression as you leared the ins and outs of the bishop and refined your tecniques with them. Also i believe coils hurt more to line is they scoop the needles in the skin more so you get a bit more tug n slice in the skin more rotarys tend to be more like you would tattoo with hand tools. I think coils are better for old school 4 color old school tattooing were you are just trying to hammer in big fields of color and fast whip shading ala get them in and out quick.I think people want more refined art these days and that is why there has been such a big surge in color portraits, undershading and subtle color blending with smoother black gradiants. I like the fact that more younger painters and mixed media artists are getting into tattooing and thinking out of the box.I feel with out this tattooing would have not progressed like it has in just the last five years.I wish i was so open minded when i was younger and felt that if i would have been around more like minded people i would have been 100 better as a tattoo artist.