Your very welcome of course :-)
Just got feedback from the Support Team about the issue I described above. They are well aware of it and consider it as a bug that will be fixed soon. So let's hope the fix will be already in the V7.1 release
I also switched recently from LR 4 to C1 Pro (2 months ago). I love the output! The differentiation in colors is impressive. So much more different shades of green e.g. in the same file compared to LR! Also you get easily more fine details out of your RAW as the sharpening algorithms are better. Up to then I was certainly pleased with the results from LR, but after trying C1 not so much anymore. Now in V7 the new RAW engine and the improved shadow and highlight sliders makes me not going back to LR anymore at all.
Still LR is much easier and more intuitive to use, but just try to jump over this hurdle as it is more than worth it IMHO.
Here on LL and at GetDPI are a lot of experienced and friendly people prepared to help you with any question.
Here you can find the on-line Help for C1 Pro V7: http://help.phaseone.com/en/CO7.aspx
and here the YouTube C1 Pro V7 vids: http://www.youtube.com/playlist?list=PLDMRz3ssFQH6HhCcWLh7xL0SapRxUNzs9&feature=plcp