Peter's comments are consistent with my experiences also.
I haven'r run shockproof yet (I now own some and probably will put it in before running the car after the fresh engine goes in) but always run synthetic gear oil.
FYI my valves hold adjustment very well even though "holding" at 6800 - 7000 is my normal practice. I'm pretty sure I have hardened valve seats.
I think I'll have fresh valve springs this rebuild.
FYI: My last rebuild was in about 1998. Previous was 1992. Much more active between 92 and 98 than between 98 and now.
Iron head and this time lightened flywheel with the Tilton clutch.