AFAIK, the sync will only import the pictures... not sure about the develop settings. But if you write develop settings to XMP files, it will definitely be sync in.
Thanks, looks like I must "locate missing folder".. But it's irritating to have a new folder every single time I sync.. Maybe I'll just keep things on my external hdd for now
As for clone stamp, it worked perfectly fine on LR3.6. This one, it stalls while loading the brush. Definitely something wrong with LR4. And if you read up online, a lot of people with tiptop hardware have this problem too.