From what I have understood, most guys, in non racing applications, with the accusump, have installed the optional electronic selinoid valve. This allows you to capture the pressure and
oil in the accusump and then shut the valve for the next time you want to pre-lube. Thus, only on initial start up, after the pre-lube do you have "excess"
oil in the
oil pan or engine. Once it starts the oil pressure pushes the oil back into the Accusump and then you flick of the valve and capture it there.
Cheers