There is another rocker arm philosophy to consider.

As the valve opens more, the spring load becomes greater. This argument postulates that, at greater spring loads,
the rocker should approach the valvestem more perpendicularly, so there is less side loading on the valve guides.

To achieve this, the pushrods should be "too short", so that there is more roller scrub (towards the exhaust side)
while the valve is just opening and spring loads are lower.

Geometrically speaking, there is a greater scrub distance than the "mid lift' philosophy. But less guide wear.