Just wanted to let people know that Discover is GREAT with the CLIs if you use regularly. Here is my credit limit progression.
June $1000
Sep $2000 (waited till third statement before first CLI request)
Oct $5000
Dec $7000
Jan $10000
Feb $15000
March $18000
April $22000
$60K per year.
Initial FICO CRs TU 656 (no baddies, just had not used ANY credit in many, many years)
Current FICO CRs TU 724 (still no baddies)
I think I'm on track for $25K by the end of year one...