I took many courses some 40 years ago in college. Forgot most of it. Got back into cattle a couple of years ago. Refreshed myself through the net and sites like this. Read everthing I could find. Problem was I could'nt get some of these cattle to go along with it. Darn things can't read. I have no dought learned more off this Q&A board than any other site I have been on. If you have a question, ask. If you say something wrong, you will be corrected. The combined experience of all the people on here is the best education one can get.