Link shape will matter for torque transmission?

Dear all,
I am using a Rocker-Rocker arm mechanism system, for torque transmission.
Link1& Link3 are plane 4mm thick, Link2 is a rod element. Now the question is, I can have a squre link, or a curved link will be another option, will link shape play a role in power transmission?
I think, being a rocker-rocker type, advantage in one direction of rotation, will be a dis-advantage in another direction, because of Mass Moment of Inertia. But dont know that I am doing right or..??
So, need your views.

Thanks,
Sachin Patil

 

Can you post an image of what you are asking?

-Mark

 

As far as the effect on link working due the change in cross-section, there will be no change..
Yes, moment of inertia will of course play roll but as asked earlier, a drawing can be the best explanation...
ANKUR