[Elecraft] K3 HEAVY Knobs ???

[Jim Miller KG0KP]

WHY?  Set your knobs for very little or no drag at all.  Why replace them 
with non-standard knobs so you can spin them?  Mine spin very well when 
needed.  I turn my knobs with one finger riding on the outside edge of the 
knob and tuning does not place virtually any pressure on the knob at all. 
This requires that there is no turning friction on the rotation of the knob. 
I set my knobs that way when I built my radio.  I don't need heavy knobs to 
spin them.

What is it I don't understand about the problem that required heavy knobs? 
I have never understood the heavy knob threads.

73, de Jim KG0KP