Breaks are extremely beneficial. No matter what kind. Yes. Sometimes, when I practice a piece, I will play through it once, not to my satisfaction. I will put it aside and play something else. Later, when I come back to it, It sounds much better. A similar situation to yours Boliver. Sometimes, your brain needs to get into its 'mode'. Have you ever had those special practice days, where you play everything at speed exactly how you want it? I think this is a similar situation. Your brain just needs to sort of activate itself. But I think the main factor, was the break you took. Whenever I start playing and get really into it I stop and take a short break, and then come back and everything is better than before. It keeps you fresh and doesn't let your brain fry sitting by at the keys for hours straight.