So I have been using the rotary's for a while now.. I always tell clients to come back in 3 weeks so I can ck the tattoo...all have healed great..and they always tell me" man this is the fastest I have ever had a tattoo heal" or "man it just felt different" So the question is "what makes this possible"? my guess on it is that since there is no give and they run so consistant, that you dont have to work the area so much which is less trauma so faster healing. Any one have a scientific answer?