Right now I am using the reef crust mode and like it. I really want to use one of the pulse modes but my MP's are loud when ramping up. I have contacted Echotech on this form to try and resolve the issue and they suggest making sure the wet side to both of my MP's were clean. I have not cleaned them yet but will soon. I really hope this does the trick as I really want a "wave" action.
My brother has his on short pulse and it looks really cool. I would just play with the settings and see what you like the most