I tested the CS 70 10-blade with the available motors I had. The simply didn't have the torque to make efficient use of the fan.
As for the Wemo, it is the same/similar load as the DF70.
As I still have more fans and motors than available airframes, I won't be adding to my inventory for a while
If you look at the Change Sun 10-blade 70mm thread, some have used the HET 3W-25 with good results on 6S with amp ranges appropriate for using 2200 batteries.