Ok sounds good. I set my initial or base at 15. Then You tell the Handheld that your initial is 15. then you can change the idle advance higher if you want.
One it is running good, they recommend hooking a timing light up and revving it to 4000 rpm.
Compare that what the timing your light is seeing matches what the handheld is displaying at 4000. if it is off slightly there is a setting(VR ADVANCE 4000) to balance at higher rpm. This VRadvance 4000 setting is not for you to put in the timing you want at 4000 ( I made that mistake), but to alter the timing by a few degrees if the comparison isn't exact.
For example if at 4000 the timing light says 32 and the handheld says 30, you can add 2 degrees to the VRADVANCE 4000 setting
Hope that helps!
Ken