"I love the size and quality of M43 lenses, but I hate the way they get those results for me."?
To be fair to the original poster, I think it was just something he was thinking about that if they did a better job optically there would be less need for SW correction and therefore less theoretical IQ reduction. I am not sure he actually SEES that reduction in his photos so more of a theoretical discussion. Then again, he hasn't returned since the original post to follow up, so maybe he does think he sees the IQ reduction. We'll have to wait for his return.