I've always PIF and on time but got a $2,000 auto CLI (from starting limit of $3,000) after a little over a year with Citi (my only card at the time) even though I was pretty irresponsible with utilization (didn't even know that was a thing then) - I had several months post utilization of close to 100%. Since then I've been successful with SP CLI via the LUV button online every 6 months or so - it almost always says it will be a soft pull only.
