"Sometimes we overlook the simple things."
That includes explaining what the abbreviation EPA means to a newbie!
@ John B,
EPA means End Point Adjustment.
Which means that, IF your TX has this function, that you can adjust the end throw of your servos, usually up to 150%. So if you are not satisfied with the current throw of your servo look for this adjustment in the manual of your TX.
All modern RC gear has this function. Which TX/Rx are you using?
Cheers, Doug 😎