Called USAA today to request a CLI on my Amex Rewards Plus Card.
They were super-nice. Decision was instant, asked for household income. Did not ask for a preferred amount. Approved instantly for $9k (180%) increase and asked if I wanted to accept. I said yes.
Start CL on 11/2015: $5000
CLI on 09/2016: $9,000
New Limit: $14,000
General Stats: Infinite Inquiries, 1.8AAoA, 650ish Ficos
Card Stats: Used mostly for gas (5% rewards), PIF usually except one month with a $2k balance August 2016, Current Balance 3 dollars (not $3k, just 3 dollars)