Dear Aaron,
In our organization we had a team dedicated to lab equipment, for all sort of repairs. Initially they were taking care of pipette calibration, but due to the high numbers of labs and, of course, pipettes, they bought an instrument. This is fairly easy to use and allows you to calibrate your pipettes on your own.
The advantage is that pipettes are immediately available, no shipping, no waiting time and can be done anytime you feel that is necessary.
Hope this helps, of you need more info, let me know.
Best,
Emanuele
------------------------------
Emanuele Palescandolo
Team Lead - NGS, Single Cells and FACS
KAUST - King Abdullah University of Science and Technology
Thuwal
------------------------------