Quick Question, I hope

And just for my 2cents;
IMO, you need only to run enough preload to keep them quiet, plus a few thou for wear compensation over time.
IMO I wouldn't get hung up on a lotta preload.
In 2004, I set mine to a half a turn, which at 28tpi , I think is .018. After 10 years a few of them started to tick ...... I just let 'em.
Here's why; I don't have a whole lot of valve to piston clearance. So if it should happen that my valve springs get tired one day at 7200, and lose control, the lifters can only take up the .018, which precludes the valves from crashing into the pistons,hopefully. Well, wouldn't you know it; I have a 4-speed with no rev limiter, and one day I missed third ( it always seems to be third) and as I was slamming it in there again, I saw the tack needle passing 8000, on it's way back down. Guess what; no damage, and it was business as usual.
Like I said, some valves are ticking now, so .018 was not enough forever. I could re-lash them, just too lazy. Besides, I'm waiting for this stinking cam to die, cuz I really want a different one,lol. Ima thinking all these year are going by and that cam just keeps on going, and going, and going ....... It's an Hughes HE3037AL if you ever wanna get one. Oh wait, it's disco'd now.