Thank you so much for the reply. It is a big learning curve, isn't it :) I sort of assumed if there was such a great all-in-one product available for these IR horses, everyone would be using it! I have to stop talking to these feed supplier reps, I am too easy of a sell hah! Glad I stuck with the basic package then.
I am slowly making my way through some of the archived discussions and documents (I am a Master's student, so crave any non-school reading I can get-though there isn't much time for it haha!), and was able to find some discussion around the questionable effects of other minerals/vitamins. Sorry if I am repeating some of the questions that have been asked in the past, don't want to waste anyone's time or resources, just learning the system still!
