No matter if you use the RX-5000 or SX-8000 II- the advantage of a proper aligned flywheel in opposite position to the motor drive is in the fact that the bearing will be free of horizontal force.
This will minimize bearing noise to the lowest possible - in any bearing.
The result in sonic terms will be increase low level detail, ambience and dynamic transient resolution.
Important factor is, to bring the string/belt tension to equal level (as close as possible) on both - flywheel and motor.
So - the advantage has nothing to do with bearing type - its a simple force vector model of two forces eliminating each other.
This will minimize bearing noise to the lowest possible - in any bearing.
The result in sonic terms will be increase low level detail, ambience and dynamic transient resolution.
Important factor is, to bring the string/belt tension to equal level (as close as possible) on both - flywheel and motor.
So - the advantage has nothing to do with bearing type - its a simple force vector model of two forces eliminating each other.