Help with closing my first NFCU card - Re-Allocating

[tussking]

BUMP UP 

Need new advice, please. I spoke with NFCU and I am maxed out on my unsecured credit limits. I have too many cards and I would love to kill my first NFCU card and allocate the last 5k to my two other cards. Is there any disadvantage? I don't 3 NFCU cards and I don't see myself getting CLI's anytime soon. It's just one less card for me to have to track. Thanks in advance.