Beags
As a current UAS/EFT QFI I'm afraid I tend to avoid the DC. I emphasise good pre-flight planning (still wind), route study and then as the flight nears putting the wind on the map and thinking how it will affect the sortie ie MDR on the ground - which, surely, is little different from using the DC with the exception that with the DC one would put wind corrected hdgs and timings on the map.
I have used the DC often in the past and it has its merits, but so does the current technique of MDR - the student gets plenty of practice at a technique that he can carry forward to all fleets. Having flown with many civil light ac pilots I can't believe they are current on the DC either. They trust to that great God GPS and when it fails to pick up the satellites they start sweating like a pti in a spelling test.