help picking blade size for freya

[kevin23]

I have an evo 90 with the os 91sx-h engine,I am running radix 710mm blades on my machine and it seems to bog the motor down a good bit on the high end of the pitch range(+10-10).
motor is tuned great,running on 30% heli fuel,was originally running 15%,thought maybe it was too low nitro,the 30 did help slightly,but it still seems to load the head down.should i go to 680's?
thanks for any help

[ucgc]

Radix 690 helped me with that problem

[kevin23]

thanks,I have found some info,and like you mentioned,I'll try the 690's
thanks for your help,
Kevin

[kevin23]

radix 690's fixed the bog,The heli seems to fly better also.
was definately worth it!

[flyinbill1]

I have been using 680's and the Freya flies quite well.

Bill