When I reconned my Freedom, I told the rep that I was just repositioning some things (I got the same reasons as you), but she didn't seem to care. Sometimes there really is a purpose to those apps! Fortunately, I called back and got a more understanding ear.
You'll have better luck at a year.
Don't feel bad, Citi denied my CLI for too many new accounts too....I look at it as the consequence of moving some things around, and getting the cards I wanted.
That Stinks! Who knew that your Cap one card would wind up having a higher limit than your Discover!!