There are a couple of threads going on the 103c...
In the other thread it's mentioned that the stock prop is too much for the motor and ESC.
I'm going to try building mine next weekend and will use the best info I can gleam from this thread and the other one.
Thanks for all you insight and help.
Any reports on how the 103c flys now that you've had it a while. Have you done any thermling with it?