I got the rotorgeeks 12A ESCs (v4) and they work flawlessly on my 4S quad. I didn't even have to calibrate them. Hit the mark right off the bat.
Service and delivery from Canada to Massachusetts...
Rotorgeeks is awesome. Top notch product backed by those whom are heavily involved in the hobby themselves. They are very helpful with customers questions and will always have an answer or suggestion....
David continually surprises me with his commitment to customer service. He takes the time to make sure I get the most out of the products he sells. I could not give a higher recommendation.
Awesome! ESC's 12a, 20a, 30a I have them all love the reliability & compatibility it has me coming back for more!
Great service, Fast postage, and 12a RG blheli esc's kick ass use them in my BO mini H