Wondering is some of you who own or have used both can compare and contrast them within the 14-42 range? I have the 14-42 and the 20/1.7. I had planned to keep the 14-42, but it just doesn't give me enough range to justify mounting it instead of the 20 in most cases. If the 14-150 doesn't bring an IQ tradeoff it would make a lot more sense for me for when I need the reach. Thanks.