i just get rid of all the "up and down" motion on my pushrods, then move onto the next one. after i do all 16 of them, i then go turn all of them another 1/2 turn and lock them down. seems to work well for me- except this spring when i changed to thinner head gaskets and didn't get a rocker arm locknut tightened all the way down, causing the pushrod to fall out and take out the neighboring pushrod and mangle 2 GM roller rocker arms- a tad bit over $100 in damage, but it could have been MUCH worse for my 3 year old $3500 engine. when i fixed it, i triple checked ALL the poly locks, just in case.
you don't plan sincerity.
you have to make it up on the spot.
wanna hear about 20 years ago when i was too smart to know any better?