fabrozor you made it hard for me to vote here buddy, I don't feel a need for adj. pushrods in a stock or mild motor but I feel the need for them when you are going into the cam dept, labor & top end gaskets will pay for them, plus the less times something has to be taken apart the better. Say a hydraulic lifter has 8 full turns in the hydraulic function, you adjust to the center point of 4 turns, that leaves 4 full turns shorter or longer before your rod is out of adjustment, that's pretty forgiving. The other thing I do like about custom fit push rods is you never have to worry about some youho not torturing the lock nut properly and the rod coming loose down the road.
So my answer to this poll is yes & no.