I am all FOR Computer Modeling, but I sometimes see people afraid to wipe their ass w/o modeling the toilet paper first. For God's sakes, just put the dam thing up, and what you get is what you get.
I have had center fed 80 meter dipoles operated on all bands fed with ladder line defy the "predicted patterns". Perhaps this was because of the ground in my area, or feed line radiation ? Whatever, who really cares ? The old saying "If it talks good, but models bad, invent a new way to model" applies here. The Bumblebee don't know, nor does it care, that it should not be able to fly.