[fiddlybits]

Dippers (or scoopers) are an interesting animal .
If the oil level is too high it can actually decrease the amount of oil that is scooped because the oil is pushed out of the way by the rod big end. On engines where the dipper tray is adjustable it is critical that it is adjusted to the right level.
Our trays are not adjustable but I think it might be possible to achieve the same problem if too much oil is flowing across the dipper pan.

If that is possible then the high volume pump would be a detriment, not an advantage.

What I would do is run the engine and see if the oil return pipe starts warming up indicating the presence of hot oil in it returning to the sump.if it does, you have enough oil volume being pumped.

Any additional oiling advantage is going to be in increasing the ability of the oil to gravity flow better through larger holes to the bearings.