Yes, I suggest you make radio contact in good time, making sure to include your altitude and pressure setting. It's a choke point. Even if you're above the ATZ.
You'll be busy looking out but will probably be concentrating to confirm your position. Someone coming in for an overhead join (might be a non-radio aircraft) might be concentrating on sorting out their circuit pattern and planning the descent onto the deadside.....you might well be in the same piece of air. Get my drift?