Less restrictive doesn't absolutely equate to less performance/filtering. Consider panty hose nylon as filter element... 2 or 3 layers would be 2 or 3 times restrictive. If no debris passes through the first layer, those additional layers are not required. So we can't know that a less restrictive filter is less filtering until we cut all of them open and study their element/design.
Or just apply simple minded concept, run the less restrictive filter and replace it more frequently, assuming the lesser element clogs sooner.
