I would say the jury is still out on the bushed as far as durability.
I was mainly after the bushed and the no axle clips to fall out and into the motor in a failure, no needle bearings either to get in the motor. Many people using the needle bearing without issue because of the oil pressure fed axle design.
The theory is with a bushed you have more surface area at high spring rates. Think connecting rods with bushed pins.
