In general, I find that individual readings work better than reading strips. And for strips, the default ColorMunki strip never works. Use 21step_cm_random.tif (from Keith Cooper’s Northlight site) to linearize.
Because I often go a long time between linearizations, I wrote all the steps down for myself. Send me a note off my web site if you want a copy: http://www.robdeloephotography.com
Rob