How about some recommendations. I am a homeowner that has been coming to this site for years now. I started doing my homework to be able to put my own system in and finally did 4-5 years ago and it's doing great. I water alittle over an acre and I am on a well. So now I am in the process of drawing up a system for my dad. He will be watering about the same amount but he is on city water. Presently he is getting his 3/4" meter changed to a 1". He has plenty of pressure. His front yard, which is probably half the system is full sun. His backyard has big pines so it's mostly in the shade most of the day. I know back when I installed my system I used pgp's and now have added some pgp ultras to some of the dryer spots around the edges. I really like the ultras with the blue nozzles!!! I was just wanting to get some feedback as to what most would use in the big open front yard and in the back. I have already said I would go with the ultras most everywhere but wanted to see if ya'll have anything different that I might not be considering, i.e MP rotators, 1-20's, or some other type head. We have not done a flow test yet, just waiting on the meter to be changed. The POC is going to be the lowest point on the system so I need to figure out the backflow also...I have no trouble with layout, head spacing, or anything like that, just wanted to make sure I give him the best bang for the buck and the latest and greatest. Thanks!