With my results I believe I have discredited the theory of UA...
There are many symmetries concerning space and time, and as summed up in Noether's theorem (
http://en.wikipedia.org/wiki/Noether%27s_theorem), each posits the existence of a conservation law. Conservation of linear momentum is a result of the translational invariance of space, conservation of energy comes from invariance in time, and angular momentum results from the rotational invariance of space.
Since we have never witnessed a breaking of these symmetries, Noether's theorem proves that the conservation laws are equally resolute. The first problem with UA is it violates the conservation of linear momentum. With UA, the momentum of the system (in this case the Universe) would be constantly increasing. The second problem with UA is that it violates the conservation of energy. With an ever accelerating Earth, the total energy in the Universe would increase without bound and would most certainly would not be constant.
The next bit doesn't pertain to the UA, but it represents another conservation law broken. In FET, the sun moves in a circle that changes its radius (and goes faster near the edge, and slower near the center), this would mean that the total angular momentum of the sun would not be constant and would violate the conservation of angular momentum.