DX ACE,
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I Am Glad You Asked )
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The Distribution of the Force that I am referring to is
the 'force' that is being applied to the Antenna Wire
{itself} where it "Bends Around" the Eye of the Insulator.
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TOO TIGHT :
This 'bend' in the Wire can be Wrapped "Too-Tight:
Causing a 'internal' Strain on the Wire Turn/Wrap and a
Higher Failure Rate of the Wire "in-the-Bend-of the-Wire"
then any other area of the run of the Wire.
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TOO LOOSE :
This 'bend' in the Wire can be Wrapped "Too-Loose":
Causing a 'movement' of the Wire against the Insulator
around-the-area of the Wire Turn/Wrap and a Higher Failure
Rate of the Wire "in-the-Bend-of the-Wire" then any other
area of the run of the Wire.
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WHY A DOUBLE LAY OF WIRE :
Using a Double-Lay of the Wire 'Around-the-Bend' usually
prevents the Wire from being "Too-Tight" {Strained} and
provides Twice the Surface and Trickness Area for Wear
if the Wires are "Too-Loose".
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I hope that this explains the "Why" of 'why' I recommend
a Double Lay of Wire through of the Eye of an Insulator.
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iane ~ RHF