I am using a Sinar eXact on a P3 with a Sinar CMV shutter. I usually use CaptureFlow Studio 1.3.1 under OSX 10.9. I did launch Sinar CaptureShop 6.1.2, captured a few images, exported and opened in Photoshop CC without any problems. I hope that helps.
Mac Pro
OS X 10.9.1
Processor: 2 x 3.06 GHz 6-Core Intel Xeon
Memory: 96 GB 1333 MHz DDR3