To tweek it for your crystal's tolerance, adjust the LSB of the fraction. The capacitance adjusts the phase shift of the network to allow oscillation. Most are designed to see a certain, specified capacitance, referred to as the Load Capacitance. In order for your crystal to operate at the correct frequency, it must see this value of capacitance at its terminals. Cp is usually about 8pF or so.
Every crystal has a parallel resonant frequency and a series resonant frequency.
If you need strict accuracy, you will have to use a trimmer cap for one of the caps and use it to adjust the frequency. But I'm interested. Just type in the box and press the Post button. To start, fill out the form . New auction engine available for members use.