Can anyone give me some details about the MDF platter as used by Rega on some Planars. I notice from photos that there is a recess underneath. Is this for the sub platter to fit in or is it clearance for the motor and drive belt as well? Also, is it a full 12" diameter platter? I am basing a new turntable build on Rega mechanicals and I am considering machining a new and heavier MDF platter. I just want to get an idea of how the Rega one is designed first.