Asics Gel Cumulus 14 Update! - I wore these in the Folkestone 10M today and smashed my PB by almost 2 minutes... I think they have broken in quite well now, but they are still very firm, nevertheless, my legs feel ok and my knees (my Achilles heel, if you will!), feel ok too.
My overall conclusion is that Asics took a step too far with the different feel of the 14s when compared with the 13s. I am uncertain whether I will continue to buy this series but perhaps I may feel differently once I have put 300-400 miles on them - I have only done 81 miles in the 14s so far...
Keep your thoughts rolling in!