PWM functions

[Gavin-Perry]

I am using PWM to control a solenoid that can not have full voltage for more than 2ms.
I'm finding limited documentation for analogWriteRange() and analogWriteResolution()
Is there a suggested order for these as they seem do to interact
For example if I have the following driving a Darlington Solenoid driver (UL2803) with 12V output (Common)

#define MyPin 18
#define FULL 100  // 100% 
void setup() {
  analogWriteFreq(30000);   // Get out of audible range
  analogWriteRange(100);  // let me use % for range
  analogWriteResolution(12);  // Should I put Res before Range?
}

void loop() {
  analogWrite(MyPin,FULL);
  delay(2);
  analogWrite(MyPin,FULL/7);     // 1/7 power for hold (1.7V)
    delay(3000);
    digitalWrite(MyPin, LOW); // Make it really off, stop PWM noise
// Is this OK to do or must I use analogWrite(MyPin,0);
}

Because 12 bits is range 0-4095 and I'm only getting fractions of a volt for FULL at 100
It seems that if I ask for 12 bit resolution then Range of 0-100 means all I get is 0 to 100/4096
I thought Range was setting a scale and documentation isn't clear what that means.
If I change FULL to 4095 (or should I use 4096?) I get the expected range (thus why I used FULL/7 instead of 14%)
Should FULL be 4095? Then would I set Range to FULL+1? (or it doesn't matter?)
I read the code in wiring_analog.cpp but it's not straightforward, with lots of scaling games to make things fit, but not as I expected.

Finally, although analogWrite() takes care of everything for the analog output (PWM mode setting...)
do I need to set pinMode(MyPin, OUTPUT); for the digitalWrite() to work? and will that be saved? (looks like it)

Thanks as always for your great support.