hehehehe! well, if it ain't broke, don't fix it! :)
Which fish oils are you using exactly? The article said there were two manufacturers that had very clean oils and I can't find the article to double-check which ones they were darnit all!
I take more EPR than flax myself. But I use flax as the "meal" oil since EPR doesn't come in a bottle that I can see. And my health food store pushes through the flax pretty darned fast, and it's always refrigerated and in a dark bottle so I don't worry about it turning rancid.
And I make sure to actually eat flax seed powder in my breakfast cerals for the lignans that don't make it to the oil.