wrote:
OK I just found this which answers most of my questions.
http://www.moonraker.com.au/techni/patterns.htm
Looks like some form of loading coil say 60% up may be the way to go.

In general, loading coils are used on verticals that
are too short. Traps are used on verticals that are
too long. Traps are high-impedance parallel resonant
circuits that tend to block the flow of RF current
through them.

If you keep those previous lengths and install traps
for the higher bands, you should be in good shape.
--
73, Cecil, w5dxp.com