I ran this filter setup for about 5k miles but I decided it stressed the fuel pump too much so I went back to stock. It seemed to work fine but being on the suction side of the pump it over worked the pump too much, even with the helper pump. It should be noted however, that others run this setup successfully without even having the helper pump. It just worried me too much.
Note that this is obviously a non-standard, non-manufacturer set up, and I later abandoned it (Thanks Drew).