Lucy/Rich/Open
"I think some of those school brooms hadn't been tuned since Merlin was around. A lot of people found them pretty cranky. As for you, personally, it may be your feelings about the whole Hogwarts situation fed back into your broom and made things even worse. Or puberty. Or you never picked up a broom that liked you. Haven't a clue, and to be honest, it doesn't matter now, does it?"
Rich matched Lucy's laughter. "Yeah, well, that's one of those things you practice in some secluded field somewhere. The sort of trick my twenty-odd years of riding makes look easy and will have you getting grass stains on your helmet if you don't go at it carefully until you learn how. On the other hand, your lap times when you were concentrating on smooth flying and hitting your marks were better than when you were flogging your broom all over the air trying to go fast."
He thought for a few seconds before speaking. "Tell you what. That Nimbus is modified, but it still isn't really a racing broom. Head back to the pit and see if one of the Bluebottle C-Class brooms on that rack suits you. The control touch is much lighter than what you're on now, and you'll have a little over fifty more on the top end. Let me see what you can do on a broom like that now that you've got a feeling for smooth."