I have an older customer that needs a better system. I might be redoing the entire system next week. Right now it is 4 zones with mixed heads, too far apart, no head to head, etc. I really, really, REALLY, do NOT want to do a whole new install. If so it will be 6 or maybe 7 zones. I am thinking of pushing the idea of converting to MP Rotators instead. I can get more heads per zone and probably be able to only use the 4 zones. Maybe hand digging one near the manifold as it is a tight shaded area anyway - micro climate zone. I may leave one large area as rotors and just change the heads to 5000s. I'm also thinking of trying the Smartline at all of your suggestions Not sure of the weather station though. This would allow me to change the monthly percentages so I don't have to go back and adjust when it gets hot and dry. I'd like to try both these products and this might be the right place. I may also try to find a video cam and take before and after videos. We've discussed many times about the MPs and the SL. Any quick thoughts or suggestions?