Hello , I would prefer to compare the motors between each other in the symbeos system rather with other builders Machines.
By comparing motors and specs its important to have in mind wich excenter is on the motor to be able to evaluate its performance...
For Example #6 motor at 6 volts with a 4mm stroke , Will equal to 85cps with Plenty of force .
#4 motor at 7 volts with a 3.4mm stroke equals to 145cps medium-hard force
and the #5 motor at 7.5 volts with 2.6mm stroke is 106cps with medium-soft force
each motor has different speeds , torques,etc
All this info Will be up at Eikon's micro site Soon....
Thanks!!!! Roman