They have several drawbacks when used that way. Several of the guys I used to race with tried it- - - -most of them ended up in the wall at the end of the straightaway after one or more of them failed unexpectedly.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!