I think the name scares lots of folks off, sounds kinda scientific and complicated. Don't worry everyone it's easy and fun.
Thanks for the testimonial Jim, I had the same revelation after I bought one and realized I had been speeding!
Even worse, there were some situations where I was going to slow (Power vent on a rheostat) and endangering my family!
C'mon folks, the man-o-meter is not so scary!