Vizard talks lifters, and the Rhoads fast bleed type.

SSG_Karg said

That sure is interesting. I never even considered adjusting the hydraulic lifter to 1/4 turn from bottom. Obviously that would require new pushrods, adding more cost. But it’s food for thought and if I had the correct pushrod on the shelf I would be tempted to try it.

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Don't necessarily need to change push rods. DV was talking adjustable valve train.
With the hydraulic lifter almost bottomed out, you also change the effective rocker ratio. As the pushrod end moves down, the effective length from pushrod center to the rocker pivot center probably becomes less. This depends on the actual rocker construction. This measurement changes quicker than the rocker pivot to valve centerline. This increases the off the seat rocker ratio, which helps low lift flow. On a non adjustable valve train, lash caps could produce the required result. You would require fairly thick lash caps. A 0.100" lash cap with 1.6:1 ratio rockers would move the lifter plunger down 0.0625".