This is simply not true. The more volume of oil you move, the more resistance you have. Very simple to test with a drill and a priming tool. The HV pump will have MUCH more resistance than a stock volume. If what you said above is true, there would be no for companies to make hardened oil pump shafts and no need to buy them. You are mistaken. Please don't give people wrong information. They might use it and destroy something. Just because you've done something for 35 years at 7K RPM doesn't make it right. You might try cracking a book now and then.