Installed a second kit in my back yard with 2 additional R-VAN-SST heads with 1800 series bodies and everything works great. RVAN’s shoot about 16’ which is enough for what I need. I needed 30 extra feet of 1/2” tubing. Took 2 of us about 7 hours for layout, trenching by hand and installation. Very happy with my setups.
I installed this system in my front yard a week ago. Installation was straightforward, hardest part was trenching by hand. Spaced my sprinklers about 18'-20' apart and I have good overlap and full coverage of my yard. Even had to shorten the throw distance on the 4 heads. Only leak I had was where the 1/2" tube connects to in the inground quick connect adapter. I had bought hose clamps for all the connections anyways to prevent potential future in ground disconnections so once I tightened it up it was fine. 90' of hose was just enough, I have 3 feet leftover. Layout, hand trenching and install took 2 of us 6 hours. I've connected the system to an Insoma Wifi water timer also from 鶹 https://a.co/d/eH3WpWt and scheduled it to run 3 times a week. My GPH measure right around 6 and my system has adequate pressure for all 4 heads to work great.
Will be installing another kit in my backyard and will try to add 2 more R-VAN-SST heads with 1800 series bodies for some narrow sections of grass. If that is too many I will split into 2 zones and run off a dual zone Insoma timer. I will probably rent a trencher next time as well to speed things up.