Not an issue with the HV pump per se.... that's an issue with the relief valve sticking which is identical in both types. Impressive on he WIX filter! I can see not looking at gauges for 8-9 seconds of fast action.....
Misconception due to the term 'high volume'.... The oil flow is set by the pressure into the engine, the restrictions in the engine's oil system, and the viscosity of the oil. Since both the standard and HV pumps can have the same pressure relief springs in them, they will pump identical amounts of oil at high RPM's where both will be pushing pressure up to either of the relief spring settings.