carbon fiber props

[3zz]

anybody tried the new carbon fiber props if so what sizes?I've got the Octura x637 at present-they say they don't need sharpened and balanced and they are light(and cheap)

[EXTREMEMARINE]

i use carbon fiber props on my villain the only problem i have had with mine is they chip pretty easy because they dont flex when you hit something but other than that i cant tell the difference frm my metal ones or the carbonfiber ones