In the ARRL (2011) Section 9.5.4 (talking about a series mode quartz crystal oscillator) it says:
To build a practical oscillator from this circuit, choose an inductor with a reactance of about 300 Ω at the wanted frequency and calculate C1 in series with C2 to resonate with it. Choose C1 to be 3 to 4 times larger than C2.
This is the schematic they provide.
1) Is there a reason for choosing 300 ohms instead of say 1k?
2) Does the choice of reactance depend upon whether you want to drive? the crystal at an overtone