I gotta say this is the best machine I've used hands down, and a coworker of mine that was all the way coils feels the same way. First piece I did with it was a huge rib piece and it made it so easy, even the client said way better feel for him. I set up with the long stroke and did everything on 4.2 lined 9.5-10volts and shade and color around 8.5-9