Congrats! I'd use this card for your monthly expenses and PIF every month -- before the statement date, if you can, just to help the util that reports.
Then in 6 mos, I'd app for a CLI. It will be a HP, but this card w/grow with you. They're known to give auto-CLIs at 1-yr anniv.
Thanks for the info. I was able to get into NFCU due to family member. My TU score this morning as of this morning is 625. I now have hope.