I have owned Eikon and Critical power supplies and really couldn't tell the difference in how they made my machines run. I am just curious, cost, meter cabability and size aside (yes, lab grades are huge) what are fellow board members opinions on lab grade supplies for tattooing. They just seem so much more robust and well built and since they are lab grade, seem to have more stable power. For example, the Instek GPS-1830D that is sold by Unimax
http://unimaxsupply.com/equip/powersup/11ex19.1.htm