06-04-12: Halcro
Newton's First Law of Motion:-
The velocity of a body remains constant unless the body is acted upon by an external force.
'Friction' is an 'external force'. Why do you think a motor is required to keep a platter spinning?
Step into the path of a person on a bicycle, and see how much measurable speed is lost. Then try stepping in front of a freight train, and see how much the train slows. Big difference. More mass. That short heavy passage is more like the bicycle IMO.
Also, if the groove has that much information, there is probably a lot more tracking distortion problems, stylus suspension distortion, and other problems going on that would be more noticeable IMO.
If your listening to something recorded on a an analog master, there is a lot more speed variation. Their flywheel has just a tiny bit of mass. You could hear this on a $99 record changer.
You may be seeing more record slippage with the Timeline, than the actual platter speed error.
How much error does the Timeline clock and circuit have?
The hole in the records are off-center quite often. More constant speed error here too. I hear a lot more of errors on the records, in comparison to a good turntable.
You could get a custom made multimillion dollar table, but you still have the same records, with their problems.