Another tip that may help.
No matter what method I use to adjust valves to a zero lash, I have found for me it is better to not pre-load them one at a time while I am adjusting. I get finished adjusting and then with engine dead I go back and adjust in preload for every lifter, locking them all down. Then when I start it they are all evenly adjusted. By adjusting preload one at a time with engine running you will think you did something wrong becuse it will start running rough. Do them all and cover it up and run it. and enjoy.
Ed