Atomos Shogun 10bit vs GH4 8bit 4K - Heavily Graded footage

More info at: http://tomantosfilms.com/
Just started testing out the 4K 10bit recording on the Atomos Shogun versus the internal 8bit recording on the Panasonic GH4. Can you tell the difference? Cuz I'm having problems. In this test I went overboard with color grading just to see if the 10bit footage holds up better than the 8bit internal recording.