In my opinion the goal is to set the powerheads up so that they create random water movement for the corals. It is important when you set up a powerhead to observe how the current is affecting the polyps on your corals. If it looks like the polyps are constantly being blown in the same direction to need to adjust it. More importantly if the polyps are not moving at all you have to fix that. This IMO is the real goal of setting up powerheads. If you can accomplish this the surface agitation will just happen. Also I have to say that my Seio 1100s create lots of ripples at the surface, which is definitely important I agree. Now to really answer your question, which is really hard not having a photo of your rockwork or where the sump return line is located…
I would start with the sump return line pointed at the front glass. Bounce the current off the front glass so as to create some random flow. Then I would put the Seio on the left side glass and have it blowing directly across the tank and bounce if off of the glass on the right side of the tank. I would then buy a cheep timer for the maxijets, don’t put the Seio on a timer. Put the maxijet 1500 on the right side glass (not on the back right side but actually on the right side, same goes for the Seio but on the left) and point it at the Seio. Make some adjustments to these three and use the maxijet 1200 to take care of any dead spots you can’t get the other to take care of. Have the two maxijets turning on and off every 30-120 seconds. That should create some really nice flow!
Nate