Thanks for the reply!

Well, I did talk it up to a spin instructor that I "enjoy" and asked her to come on over to where I was spinning and let me know if there is anything that I could/should do to improve my form, ect.
I also mention the guy who was upset with my "beeping"...she said to tell him...well, sort of the same thing you said but with more attitude! I guess my "manners" are OK by her.

There was also an issue brought up in class of spinning and standing (sans seat?) the entire session and the instrutor said that it was a no-no in her class. But, she added, if anyone was going to do it anyway, to spin in the back of the room so as to not distract her/other students. Apparently there is some "style" that stands the entire class and uses hardly any resistance on the tire...anyone heard of this? Apparently, it is marketed as an "endurnance" class. (?)

FYI...
I'm a mom too, but my "baby boy" is a old dirt squirt, 22, who downhills competitively. (I'm trying to find him a nice bike-chic girlfriend....and I have pictures--HA!). He also sends me videos of downhills in Moab, which I do "visualize" when spinning.
Thanks for the support and advice.
Terry