thanks. my biggest issue is the 110K allowance (technically not a credit line) on my ink bold. I use it monthly so can't taper it down. other than that I have the united card and the SP, each for a long while already.
Keep one old card (unless you have one from another bank). You don't need the SP for UR transfers, you have Ink. I think it can be converted to a Freedom. I also like the united card for the perks.
You should grow your income, then you'll be eligible for more CL. (That's a bracha, not a message to lie.)