Might be worth mentioning that the best DD TTs get W&F down to 0.02% - but an error of just 1mm off centre at the spindle will bump that to over 0.1%.

Very few discs are perfectly centred and many have far greater errors.

Just a bit of perspective.

*An old 1700mk2, a direct but very similar ancestor to the 1200 produced 0.05% w&f, no measurable slowing under load (2g tracking cartridge) and weighted motor unit noise figures of -79db.

Those figures are actually better than an SP10/2.

*M Colloms HFC 1981.