Very good and I do not debate this. On the Rhoads site they have a question and answer section and they claim that valve spring pressure is not an issue because the lifters bleed down is based on engine speed and the time the bleed hole has to bleed and is lined up and able to bleed down. Since liquid does not compress I assume and that's all it is is a hypothesis bases on their statmente that the ratio and spring pressure varying to a degree of changing the way the lifters perform will be minimal and not noteworthy for my application at least.
