Topband: Elevated radials issues

[F3WT]

Hello gents,

What about comparing  elevated radials vs. ground  by considering an  
inverted  quater-wave vertical  top fed ... ( and intrinsically   
loaded as current maximum is up) ? Radials are  then often  be part  
of guys. I saw  expeditions using them  . Wonder if anybody has any  
such experience or benchmarks w.r.t. verticals with ground radials.
Gerd, DF6SJ , has done some quite interesting  EZNEC-simulations and  
theoretical work in a book ( in German)  . But I know of no  
experimental results including on a given  - same -ground of both  
inverted and non.

Any experience t.b. reported?

Pierre, F3WT