@teramax
Yes they are Graupner e-prop 10x5, as you said
@Leopold:
the flyduoino are these ones (gemfan "style")
http://flyduino.net/10x45-Carbon-reinfo ... -2CW-2-CCW@Larry
Static calibration you can fix easily (under a certain limits) using a balancing tool. If too much Scotch tape have to be put, then it´s bad also.
Dynamic calibration depends on the blade shape so, it´s almost imposible (imposible for me).
And not, you can´t see the good/bad by "eye" before testing it.
@Max:
fully agree in your comments, I´ve experienced also what you say.
For instance, when testing "dynamic" performance (checking vibrations yes/not) there are many times that a transition phase (low to mid rpm) induce vibrations, but then disapair al high speed. This is bad also, since our copters are changing a lot the rpm very often and quick.
Also you can have a bad shape under high speed, but yet equilibrated in vibrations : this is bad also. You will notice in the low performances of the propeller. This happens in most flexible probellers.