I would just go with black..it's classy and crisp looking on a dun.
as for the boots.. the SMB3s are an OK boot..if you are really wanting to get something that is a better choice and last a long time I would get the Professional's Choice VenTech Elites..I have several pair and love them.. The SMB3s just don't hold shape and conform to your horse's legs like a boot should IMO.
lol And, it's not crazy to have different tack for each horse..my three all have their own stuff and color.
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