DS doesn't like starting off right away with the 12 or 14 HZ setting, so I usually if he gets fussy with that, I tease him and ask it if he wants it faster and move it up a notch. Then he laughs and I turn it down. I think mainly the issue is with the shock of turning on the vest and interviewing with tv watching <img src="i/expressions/face-icon-small-smile.gif" border="0">