Why use any agent at all? If it’s listed, you’re interested, the selling agent has a phone #. Pick up the phone, call it, and see the property. A few lazy selling agents will piss, whinge, and moan about showing a property to someone without a broker, only then do you need to give them a broker’s name.
Bonus for the selling agent: they get to keep their entire commission, not split it with a buyer’s agent. Though I’d assume that you could have a bit of wiggle room in negotiating that to lower the price.