I want to know if this mods will benefit as indicated

*1/8 Stainless Steel Thrust Bearing
Install between the coupler and motor to help take the load off the motor bearings. Fits 1/8 shaft and has an OD of 7/16.
*Teflon Washers 5mm
Place between the drive dog and strut to prevent wear.

Is there anyone using this mods? I know the stock setup had a thin washer close to the strut, but on the motor where none.