Yes, backupr9, I just got back from a short trip to Vermont. Anyway, shortslide. . . . . It seems your issue with the trigger not resetting, being so intermittent, may be simply a cleaning is in order. Pull the right grip panel off and if you have a cellphone camera, take a shot of that area so you see how the parts are laid in place. Pull the trigger spring off of the two posts and remove the trigger / sear bar. Wipe the bar down and give it a light coating of gun oil. With your finger, or a Q-Tip, put some oil on the sear bar and the triangle area of the frame, which is what the sear bar lays against and which activates the hammer when the trigger is pulled. Also remove the trigger from it's pin and clean the inside of the hole and add some oil to that also. Place the trigger back onto the pin. Oil the pin on the trigger where the sear bar goes. Put the sear bar back in place and reposition the trigger spring on the two pins being careful not to round off the pins. Place the other end of the trigger spring into the small hole near the rear of the sear bar. It is helpful to pull back on the hammer slightly to help the spring into position. Put some oil on your finger and apply the oil to the frame where the sear bar glides against. This helps reduce the drag of the sear bar between the frame and the grip panel. Install the grip panel and snug down the two grip screws but not so tight as to round off the Allen screw head. Hopefully this will remedy your problem. There is a special technic to "Tweak " the trigger spring, but I did every one of those by hand at the shop when I was building them and the correct curve is rather difficult to explain. With some patience, I'm sure you can figure it out if you are handy. If you still have an issue with the gun, I would suggest you contact Williams to see if they can assist you in making your R9 function properly and reliably for you. Good Luck with trying to do the fix yourself, it is a knack, but not too bad once you figure it out. I hope my response here is of help and of comfort to you shortslide.
Regards,
Eric C. Rohrbaugh