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What is with this trend of jumping about in the cart and leaning backwards?! It doesn't make your horse go faster (trust me, when I used to train my Dad's in fastwork, I'd pretend I was a US driver from one of the stallion videos we used to get mailed when I was a kid and jump about and try to lean as horizontal as possible and it did absolutely nothing to make my horse go faster). It just causes the horse behind you to lose ground as they baulk or not be able to get as close.