huh. I wonder if this is a factor of any given gyms' set up. Aside from personality differences and music difference, all the class leaders do it the same at my club - just tell you to go up a "gear" or down a "gear", percieved heart rate, or higher /lower cadence. They are very general. There's a real homogenity to the experience really, not sure if that's a good thing or not.

~i.