Skeleton secondary?

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Original poster: "Jolyon Vater Cox by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jolyon-at-vatercox.freeserve.co.uk>

Dear List,

Having noted that most secondaries are wound on solid tube formers, are 
there advantages in winding a secondary on on a "skeleton" former (i.e. 
circle of several insulating supports or tubes) for instance to minimise 
self-capacitance?

Moreover would there be an even greater advantage in employing a "Lorenz" 
type secondary (where the wire is wound between  supporting poles
numbered 1 to 8 so the wire passes over 1 under 2 and 3 ,over 4, under 5 
and 6, over 7 and so forth so that each complete turn is see end-on as an 
8-pointed star with the wire having been wound over all eight poles)
from the capacitance-reduction point of view?

Jolyon.