I've recently changed my schedule for my vortechs to include a period of short pulse mode after listening to one of Jason fox's speeches saying that it is great for sps growth. Since switching it a few weeks ago I have seen a great improvement in polyp extension. As of right now i have them set to a 2 second pulse. Just curious as to what everyone else uses, maybe a shorter or longer pulse? I can't go too much shorter because I don't want to create waves in my rimless tank but I could change it to long pulse mode and make a longer pulse if that would be beneficial.