[Towertalk] Models

[Mel Martin]

Finally bought some modeling software... EZNEC... and considering YO and
AO...

Does anyone have models developed for any of these: Hygain TH11, DB12/17
Optibeam antennas, or any other interlaced designs. I have a
hygain105/155/205 still in boxes, and wondering whether to install them (
cost $0), or move to the newer interlaced designs (cost $$$).

Also, any opinions on using YO to model buildable Yagis?

Thanks...