Apped and was approved in April 2017 for a Discover It Cash card with a 2.4K SL. Across the last few months have been attempting a CLI with no success.
Tonight, I submitted for one after making a purchase and then applying a payment and was approved for $300. Decided to double dip and called into the Discover line. Was instantly approved for another $700 bringing my CL to $3.4K, a nice $1K CLI. Will definitely be attempting again in a month of two!