high flow trans filter

I've got a couple of brass screen high flow 727/904 torqueflite trans filters that I tried years ago. It's nice that they are cleanable/reusable and have minimal restriction. But I'm pretty sure I heard that they are not as efficient at filtering the smallest particles. I've been using the regular ones and service periodically on my race car. My 2005 Dakota and 2004 dually use different filters. I don't recall what the original purpose/application was for the brass filters/screens.