[TowerTalk] 4L Steppir 10m Mod

[Rick Stealey]

Yes I have done that on a 3 element SteppIR.  It turns a mediocre performer into a beam with a great pattern.
I use 4NEC2.  Could send the file I used and you could modify it for your purposes. The main thing you would need to know is the fixed locations of the existing elements.  I DID NOT take into consideration physical effects (torque, balance, etc) - just the electrical properties.
And for example I found that adding a passive reflector and leaving the original reflector extended to its original setting does not deteriorate the pattern.

Rick  K2XT