I “think” one of the reasons some say go solid is for the fact you eliminate the hydraulic components and the possibility of the internals having an issue (collapsing, leak down, etc) among other reasons.
I took a set of Sealed Power hyd apart, cleaned and inspected them. Some had the thin stamped little discs installed 180° from a majority of them. I put them in the same as the others during reassembly, after thoroughly cleaning them. (Lots of black residue on rags after wiping them) Lubed up good, soaked in oil, cam lube massaged into the lifter faces. I’ve done all I can do so.....
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