Just one person's story but even though we left one hour late from OKC (RJ equipment change in DTW), I raced from A-14 to G-4 and made it. It was a delicious flight especially when an empty seat (G) gave me much needed pillows and room to squirm.

Now if I can just erase that 6 hour layover in AMS on the return (open jaw from IST) although the 'deep sleep' part of KLM lounge #52 could work out okay.