[Elecraft] Weighted Tuning Knobs - Any Consequence?

[John Huggins, kx4o]

All,

Does anyone know of any issues the extra weight of the "weighted spinner
knobs" such as these...

  http://www.73cnc.com/73cnc/elecraft.html

...might cause the bearing points of the tuning shaft in the K2 or K3?

Thanks.

John