So, whats the most common method of connecting sprinkler heads to pvc pipe. Or let me back up, when using pvc, do most installers use a trencher (so the trench is open and you can easily move the pipe around) or a vibratory trencher (which, based on what your saying, would be harder to tap into). Seems like the vib. trencher makes more sense for the poly pipe.
In terms of tapping into the pipe these seem the way to go for poly:
http://www.sprinklerwarehouse.com/Snap-Tap-Saddles-Poly-s/4913.htm
And for non-200 pvc seems like you would do a 't' off the pipe then use barbs and adapters to the sprinkler head. Or use these:
http://www.sprinklerwarehouse.com/KwikSlip-PVC-to-Swing-Funny-Pipe-Y-s/196.htm
????