Nimbus 14 fit and wear completely different from the predecessors. I became a nimbus fan with nimbus 12 which were cushy, very supportive and keep my narrow heel in place with asymetric lacing. Nimbus 13 got rid of the asymetric lacing, though cushion still seemed to be great. Nimbus 14 changed everything...more narrow toe box and cushy feeling completely gone...feels a lot more stiff. When compared to my Nimbus 13 which were worn out, nimbus 13 felt more cushy even though they were too old to run in.

UPDATE:

Just received the Nimbus 12s from Amazon and compared them side by side with the 14s (putting 14 on 1 foot and 12 on the other, then switched). Nimbus 14 have less cushion/stiffer or flat, less arch support and toe-box not as roomy. Also, the asymmetric lacing of the 12s keep the foot in place. So, I'm going to get another pair of Nimbus 12s and hope that the next generation of Nimbus..the 15s go back to what the 12s were.