Running OS-X Sierra, Winclone 7 app on a MacBook Pro 15" 2013 with Windows 7 bootcamp partition working just fine booting between the two systems.
Needed to move both systems to a newer 2015 MacBook Pro. So cloned the mac side (using a Mac app called “Carbon Copy Cloner”), no problem. Used Winclone to clone the Windows 7 Pro side.
After moving the Mac OS to the new MacBook Pro, Created the partition using Bootcamp Utility in Mac. Copied the Windows 7 Pro image that I created on the older Mac to the new partition. And tried to boot into Win7 pro. Nothing. Just a blank screen.