Angles on power head output?

It seems like I am never happy with the flow in my tank. Right now in my 30gal I have two power heads pointing towards each other. That creates two circles below the power heads, and half a circle above them before it breaks on the surface. My question is how should I actually be doing this? And if possible, could you guys post a picture or two of how you have your power heads set up?

 

One on each end of the tank pointing directly at the center of the front glass should be a good starting point.

 

Meaning mounting the power heads on the back glass facing the front?

 

They should work well mounted on the end glass of both ends.

 

Thanks for the picture

 

No problem, let me know how it works.

 

I think its working out pretty well. Thanks