[GPS_Standard] What is the effect on the accuracy and speed stabilization should use the 10th harmonic

[saper]

I have a 10MHz OCXO MV89. Getting from 10MHz 100MHz, using the 10th 
harmonic
MV89 sinus -> PECL nomparator make square 45/65 -> high quality 
band-pass filter 100MHz -> ERA amplifer -> high quality band-pass filter 
100MHz.
My question is simple
Somehow affects the accuracy and speed stabilization, when the feedback 
instead of the basics 10MHz will use 10tj harmonics 100MHz?
I would counter implemented in FPGA.
Thanks