Generally, the lower the brace height the more critical the bow is of flaws in shooting form, but the faster it shoots. For those who sometimes take shots longer than 25 yards an extreme bow offers real benefits. It is beyond 25 yards that the advantages of a flat trajectory really start to become apparent. However, because they require perfect form to shoot accurately, these bows may still not be for you. The only instance when it makes sense to consider an extreme bow is when you're committed to achieving and maintaining great shooting form and intend to take shots past 25 yards.
Many archers go wrong by grabbing the grip when they release the bowstring.
It's an involuntary reaction that naturally creeps into the shot and destroys consistency. The affect is bad enough when shooting forgiving bows, but it's a killer when shooting a low-braced speed bow. Focus on keeping your bow hand relaxed throughout the shot. Don't force your hand to stay open, just keep it relaxed and let your fingers hang naturally. A bow sling will allow you to work on this important element of the shot without worrying about dropping the bow.