No I did not. My previous statement is somewhat anecdotal, but my first hand experience has been that I have had difficulties getting the water flow to smoothly go through my media basket with just the stock returns. Due to the baffle design in the rear sump area, the water tends to build up in the media basket chamber and overflow the side of the media basket if there is any impedance at all. I’ve drilled out numerous extra holes in my Intank basket to help with water flow, use a very thin piece of filter sponge, and have found that I need to frequently clean everything in order to keep the water smoothly flowing through the basket.
That being said, my tank stays very clean and I am very happy with my filtration, despite not running a skimmer.