Thank you very much for the reply! Although I didn't see it until I got back from fixing it! I will provide the solution here for others to maybe also use!
Symptom: 9 X 360 degree heads, small umbrellas of water constantly fluctuating up and down. All on one circuit. Not a far run of pipe.
Solution: LESS IS MORE! 3 X 15F by 360 degree covered the area sufficiently!!! Removed 4 heads entirely and plugged ends. Last 5 were alternated as on - off - on - off - on. This cured my problem and ended up covering a huge area!
My Suggestion ( to others exihibiting similar problems): Try turning all your heads off via the screw on top. (Remember Righty/Tighty Lefty/Loosey!) At this point it would be a great idea to turn the valve on (make sure you hear the sprinkler line pressurize when you do to maybe rule out a faulty valve) Then leave it for a few minutes. Check back in the area for any water coming up around the sprinkler heads or misc places in the lawn. (To rule out any leaks) After you determine the valve is working, and there are no leaks turn the water off and turn on one head... inspect its range and flow... if it's good then turn water off... turn on another head... rinse... repeat... until you have either the area covered that you need or you figure out how many heads you can run on 1 valve without getting performance loss!
Plmbrguy
P.S. Sorry for long-winded post. Just wanted to share my solution and help