Some people chose to run hydraulic rollers because they worry about maintaining a solid roller. They don't know how, they won't learn, they've heard horror stories about constant adjustments, they figure it is cheaper or they just may be too lazy to adjust the lash.
I worry about oil control in the hydraulic lifter. Not all, but some factory lifter bores are oversized or worn out. Worn lifter bores are a source of leakage around the lifter and this can cause an operational failure (not necessarily a physical failure) of the hydraulic lifter.
We were a very small, low volume, small profit, two man shop. It's a killer to have one customer that I have to hassle with over and over because his hydraulic roller that, he demanded, rattles in his engine. I gave up building cheap engines to satisfy cheap customers because they want to save a few bucks on their economy engine.
All the blocks we see now are 40 years old. They are mostly worn out! New blocks, okay you can have hydraulic lifters. But I won't do hydraulics unless we bush the lifter bores.
"You won't build me a hydraulic lifter engine unless the lifter bores are bushed?"
No I won't!
"Well I'll just take it to someone else, A-hole!"
Bye.........Just my opinion.