I struggled about how to represent Betty Cash describing the shape, because what little she said about it did not reflect the original statements:
"Plaintiff BETTY CASH could not discern any distinct shape. To plaintiff VICKI LANDRUM the UFO appeared to be oblong with a rounded top and a point on the bottom. To plaintiff COLBY LANDRUM the UFO appeared to be diamond-shaped."
From a statement by Peter Gersten, lawyer representing the witnesses in the Cash-Landrum, a "More Definite Statement", dated March 23, 1983:
(Found on page 18 of
http://www.cufon.org/cufon/cashlanL.pdf )
These descriptions appear to be based on those filed by John F. Schuessler in his preliminary Project VISIT report which was distributed in early March 1981 to MUFON, APRO, CUFOS and FUFOR.
I've made this point before, but Betty and Vickie seem to have adopted Colby's version after a few weeks (possibly because it was the most favorably received). Schuessler interviewed VL almost a month after she first reported the incident and she had told the story to several reporters by that time and was subjected to Colby's multiple attempts to make drawings of a diamond-shaped UFO.
In the Bergstrom interview she refers to the shape, but only as the sketch she has drawn for them:
"Its supposed to be a diamond shape, but its not very good."
In interviews there are descriptions that seem inconsistent "ball of light", long white light", but the sighting was not static. The UFO was seen first as a light flying horizontally behind trees, then hovering at close distance vertically over the road, later flying horizontally at medium distance while followed by helicopters, and finally several other times from greater distances as they drove away from it. The witnesses gave very poor descriptions and do not differentiate between the situations they are describing. Examining Vickie Landrum's statements, she does not always differentiate the object from the light it was producing. By the time they tell the story several times and are asked leading questions by UFO investigators, their testimony possibly becomes contaminated.
I don't see a big problem however with the colors described, as they all are describing illumination and fire-like effects. It is interesting that in the earliest accounts that it is not definite that the object is venting flames:
"The whole road ahead and around it glowing as if by fire. I believe it was fire because it glowed down and let up a little" -VL from tape recorded early Feb. 1981 at Parkway Hospital.
After a few tellings, it went from fire-like, to flames like a rocket's exhaust. As with the object's shape, the media and UFO investigators seized on the more definite and dramatic version.