I have Aeromotive -10 units in this with the stainless mesh USA filters in them . I figure the 40 post maybe the pump has to work a little less . Maybe it’s negligible but I did it .I just did this myself, my 10 micron was filthy, and took alot more effort to blow through than I was comfortable with. I ended up ordering a Summit labeled 40 micron unit to replace the entire filter housing, because they wouldn't have the 10 micron replacement element till at least 8/4.
So,..100 micron pre, 40 mic post for me too.
Only mine is considerably more cheesebagly than yours I'm gonna venture to say.