Taildraggerdave

??? The sear should be as easy to install in as the stock one. Some of the early versions required some fitting, but now they drop in very easily. The sear is what reduces the pull length by about 50%, without it you would still have the long trigger pull and reset. No problems for me getting the parts back in the gun. I love mine. Springer sear, trigger bar, and spring kit.

I do the same as mentioned above. Also, an excellent tip I found online and have on my own 550B is a small aquarium fish pump attached to the hopper tube with one zip tie. The small fish pumps set up a vibration and makes the powder charges much more consistent. Clays doesn't seem to throw that well but it sure does when the pump is on. I am using WSF in my 9mm loads and it throws less than .1 of a grain variance every time with the pump on. Take care, Dave

You mean these springs? http://pistolgear.com/proddetail.php?prod=01CAA

To the original poster, Try the pencil test and see how high it goes. Verify the gun is unloaded. Rack the slide. Drop an unsharpened pencil down your barrel, eraser end first. Point the barrel straight up and pull the trigger. My stock XD9 would shoot the pencil about 2 feet out of the barrel. The same gun would push a pencil about 1 foot out of the barrel after changing all the springs to the Canyon Creek lightened spring set. I have some SP trigger parts on order. Should be here very soon. As a matter of reference, my Glock barely gets a pencil out of the bore yet functions fine. My 1911 will push a pencil into the ceiling. Keep a pencil in your gunsmithing toolbox for future testing. The test tells so much with so little effort. Good luck with your troubleshooting. Dave

+1 for the Clays load. I use 4.0 Clays with Berrys 230gr plated bullets.

Yes, there is a List of guns that are allowed to be sold in California. Check on the DOJ website for the complete list. Take care, Dave