Just from the first page, I saw that there were dialog differences from the two groups that did ch14. So I had to look at the raws to figure out what was more accurate.
My conclusion was KKJ scans had the better translation. Even looking at page 2 something as simple as "stronger" was translated as "faster" in Katanon's version.
I won't say to read one group over another, but for ch14 I'm personally going to read KKJ's.