I've got mine set at 2.5 at the moment and can do some nice B&G with it. The machine with its' Maxon motor runs superbly,needless to say it's a Roman HM machine so the build quality is as you'd expect ,very good and well balanced. The stroke adjuster is a doddle to use ,and at variants from 2.5 to 5.5 in stroke,the tasks you can tackle with this lovely tattooing tool are boundless. I can't imagine anyone who likes DDs not liking this one. A big thumbs up from me then.