Propellers available for a twin setup counter rotating ??

[Alfa Spirit]

Hi, what Counter Rotating Propellers sets do you run?

I use Octura X442, X447, Tenshock CNC 42mm 2 and 3 blades, Graupner carbon K45 and K51.
ARe ABC propellers balanced from the factory? They have interesting models,


http://img825.imageshack.us/img825/1918/temp275.jpg

[carlcisneros]

The props from ABC props are not balanced or sharpened.
you have to do that yourself.