Yup. The round ones come with a hole saw, so, that makes it a bit better... when it's the right size.
I have been evaluating suppliers and received a set with the wrong size saw.
Where did you connect them?
Based on the schematics, I have not found a switched circuit in the doors beyond the ABL, if equipped for that. The standard gobo's draw a good amount of power (5-7W), and, I'm not comfortable telling people to hang that on the ABL circuit without knowing the details on that BCM output.