weighted knob and synchro issues?

[lemonade]

So I recently bought a snunk2 gear knob, and boy is it heavy! Got me thinking could it do any damage to the synchros? I remember reading few years ago about how its bad practice to rest your hands on the gearknob as it wears out the synchros.

 

[lemonade]

^ Yeh did some research and it doesn't effect it, having your hands resting on it has another effect which can cause wear on synchros.