When did flourishing mean busting out a Sybil? I'm not talking about those types of flourishes (even though Daniel Madison busted out Sybils and other fancy cuts, several times throughout his performances on the Mystic DVD in Dangerous, and yet, contrary to what you guys are saying, people were flipping-out, screaming and amazed.) There's a difference between being superfast with your hands and someone thinking you have "fast hands". Someone thinking you have "fast hands" doesn't neccessarily mean that you visibly moved your hands fast. This phrase has been used for years to describe someone using sleight of hand. Even though their hands don't move fast, they are considered to have "fast hands". This is what I mean when I say people will assume you have "fast hands", so why look like an amature, when you can look like a pro? And yes, there is a REAL book that condones flourishing, and enourages it.
I'm not talking about whipping out a pandora, but using flourishes that fit with your magic, and make sense. Slow displays of fans, charlier cuts and other one handed cuts, springs, dribbles, card flicks, aireals. It's entertaining and these types of flourishes enhance magic, as they are magical movements. 2-handed cuts and such generally don't fit well with routining most tricks... We need to be specific when we talk about flourishing and magic. You guys seemed to be clumping all flourishing together when there are many types, some of which work well with magic, and some that don't. To have no flourishing at all in your magic, IMO, puts you at a disadvantage.