Topband: 80/160 trap vertical

[Tree]

Dear topbanders.

I would be interesting in hearing any stories about trap verticals used for 
covering 80 and 160.  One interesting case is the battle creek special.  There
must be more data out there.

I am most interested in something that is probably around 25 meters in height with
some top loading using wires.  I haven't made up my mind yet whether to use a trap
tuned to 80 meters - or perhaps something closer to 2.5 MHz.  Or perhaps this can
be done with no traps at all?  

Thanks.

Tree N6TR/7