If you are building an engine today (~2023), Professionals are not building Hydraulic FLat Tappet camshaft engines? Don't try?

IDK what all the hulabaloo is about,
My Hughes lifters have been in my 367 since 2004, on their HE3037AL cam, with enough valve spring pressure to spin 7000/7200 as often as possible,lol. Said lifters have, Ima guessing, over 80,000 on them. Probably closer to 100,000.

Oh sorry, almost forgot, I set the preload to about 1/2 turn, lol.
I think the hullabaloo is people are finding issues with cams and lifters produced now that are showing the effects of poor metallurgy, hardness, and QC and thus, failure.

so, they did make stuff better back in the day. literally.