I had realy planned on replying to this one, as this is what I do full time. However, after seeing Uluru's post above, I can't really add much to those web sites and still be able to not OVER RUN THE BAND WIDTH.
Most every one knows I can get windy at times ( HaHum), so - let it be known that , even though the ALTA group did a good job of generalizing the system, there are at least a hunfred more things that go un-noticed every day in the ET business. Any full time cow man will know that cows are by nature fickle, all we need to do is understand FICKLE -- and we win! Or so it seems most of the time.
If any one every has any "Specific" questions, feel free to write and ask -- I may not know everything there is to know about ET, but I would almost bet I have seen just about everything there is to see -- and have encountered almost all the possibilities so far .
Each day -- I still see new and strange things, so we learn as we go -- it has been a challenge -- not to learn -- but to "RETAIN", hehehehe!
Take care -- TErry