Data point: Initially (last month) approved for 5k line on Ink Bold. I'm at 4900 of actual business spending (may or may not help cause) and called to see about a CLI. CS rep told me it's flexible spending but they'd transfer me to lending dept and I reluctantly agreed dreading a hard pull.
Guy asked me a couple questions about the business, did a soft pull and increased it to 7500--said that good payment history and normal charging will allow it to naturally flex upward without any inquires hard or soft.