Sorry for my ignorance, but I'm assuming demosaicing is the process of turning a RAW files data into a viewable image? So, if I did that in DPP, I can't then save those changes in any way in LR? So I have to work on a Tiff?
That's not the end of the world. It's not about quality here, it's about the p!ss poor performance of LR and the frustration of trying to use it.
Can I ask what U points are?
Edit* Just another wild thought. Does CS 2 have all the controls that LR has? If so, a much easier transition to go from LR cataloguing to CS2 for editing and export?