What I have is a 2hp Hayward Northstar pump that will need a new motor. It seems oversized and is a energy hog. I can't find a variable speed motor that will work as a replacement but would like to get a 2 speed. I will probably keep my single speed timer and use a toggle switch for high when needed. Is there anything else I need to consider like flow to skimmers or priming on startup? just looking for advice or ideas, thanks.