Can Macintosh HD partition be resized while a BOOTCAMP partition resides on the same physical volume?
Solution 1:
Disk Utility won't touch things once you have a BOOTCAMP partition.
Look for third party utilities like CampTune for on the fly adjustments (or at least ones after a reboot in some cases). You'll discover the same company Paragon that made the NTFS drivers, also makes CampTune