Just wanted to post a data point for future people doing searches as I found that helpful when I did mine. I was trying to even out two Citi lines as I had a huge 30k+ line on one card and was recently approved for the Double Cash but only with a $ 9,000 line. I asked to move 10k from my other card (Aadvantage) to the DC. It was a hard pull, but was completed in less than 24 hours with no issues. BTW scores are 750+ for all 3 bureaus. Thanks.