Ok, I understand it better now.

What about ATV? Is that just the servo end point? I see people talk about 100% ATV or 140% ATV and I'm still a little confused. Especially the 140% ATV. What is the significance/meaning of something greater than 100%? Why can't they just make the max 100%?

Also, when I first set up the servos mechanically, I have to make sure to center the servo with respect to the servo arm right? You know there are a lot of ways you can put the servo arm(star) on the servo output shaft... I have to make sure I put the servo star on the output shaft in a way so that the servo arm used (the one with the linkage attached 90 degrees) is in the "middle" position of the servo movement range, so that the servo can move in either direction equally. Right?

Where do all the programming get stored? The receiver? The servo itself doesn't have any memory right? So this means if I get a new receiver I got to reprogram everything. I'm just guessing. Please inform me.

Thanks