I can only advice not to use X12 motors too! I had 3 of them so far and will never buy one again. Had problems with heat (gear ratio was right always) and had 2 motors with strange noises that turned out these where manufacturing problems.
I am still in the procedure of testing motors but i heard Novak Ballistic are good motors.
I currently have a Robitronic which costs only half of the X12 and i recently bought a Castle Creations Mamba Max Pro system which i wil be testing next year but i am pretty confident that they are at least as good as the LRP motor for half the money.
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