Grin technologies DD vs Falco DD

[PatMac]

Has anyone here owned both the Grin Technologies Crystalyte/Torque sensor DD system and the Falco system? How do they compare?

 

[MLB]

FWIW, the motors keep getting more powerful. Falco's biggest is twice as much torque as the one I bought less than 2 years ago. As in "can pull 500lbs strong.