Long valves on W2's with .600 lift?

Mike writes on YB
We take the Johnson lifters, and EDM a .024" oil hole in the face of the lifter. We've been doing that for about 30 years, and in circle track, we see cam life about triple over std lifters.

For break-in we recommend lowering the spring pressure to below 300# at max lift, and running for 20 minutes at 2,000 rpm, using PennGrade 1 break-in oil.

I talked to them at the PRI show, and I was assured the formula hasn't changed.
We have had zero issues, with their oils.
If they changed it, we would have seen lab test results, showing the change.
different poster
There was a thread about Brad Penn versus Penn Grade oil. I have been using Brad Penn and sold it for many years. I called Brad Penn and talked to an engineer when the buy out by DA oil was going on as there was a time you could not get any Brad Penn. He said it was because Penn Rite was changing the bottling line, packaging, and was not set up yet in Lebanon Indiana where DA home office is.. He assured me DA was continuing to buy the oil stock from the Bradford Pennsylvania refinery He also said his wife was involved in the formulation of the oil and it had not changed since the change/ improvement that was made when it was renamed from Kendall GT1.

In contrast later I saw a post on here that DA had not purchased any oil stock from Bradford Pennsylvania for over a year. I have both Brad Penn and Penn Rite 20-50 oil here and the color and feel is the same, if that means anything. Both say "The original green oil" and "very high Zinc, ETC content" But the Penn Rite does not say made from Pennsylvania crude oil like the Brad Penn does.

Also I see Driven Oil has come out with semi synthetic/ Pennsylvania crude oil based line. Sounds like the old Brad Penn?

Any updates on the Penn Rite.
mike answers
You can read all about PennGrade1 oil, right here.
https://penngrade1.com/wp-content/uploads/DA-Lube_White-Paper_FINAL_FINAL.pdf
`