When most things become popular there always seems to be advancements in the technology. Companies see the opportunities and put money into R&D, even if it's not something they've done before.
It seems to me that tattooing is at what's probably the crest of its popularity and as such should be seeing some advancements. Is anyone doing this? Is there any improvements that can actually be made?
I realize it an age old tech, but just about everything can be improved.