I felt the 2004's were a good shoe but seemed to degenerate quicker than the earlier versions, leaving them pretty lifeless after a couple of hundred miles.
I preferred the initial feel of the 2004's but the longevity of the earlier versions was much better.
Apart from the popping air horror story above any other comments on the 2005 with this in mind? I am thinking of moving away from Pegasus for something that keeps it's balls a bit longer. Adidas Supernova any good?