With that I don't mean hit a wildly errant toss that you can't reach without missing, but just don't get in the habit of doing the toss catch when it is slightly out of position. Most servers have problems with their toss if they have the classic skyscraper toss that takes forever to fall back into position. Meanwhile, wind can move the ball as you wait for it.
The Benefits of a fast serve delivery
The most important benefit of a faster delivery is that the toss height is minimal and therefore is less susceptible to wind and toss control issues.Ideal Toss Height
The ideal toss height is one that you strike at full extension, but not hyper-extension, and where the ball effectively sits still in the air as it transforms from a rising ball to a falling one.Wind
When you have lots of wind or gusts of wind your benefit of having an abbreviated delivery with a just-high-enough-toss is a major advantage. In really bad wind you can even shorten the toss to eye level with this practiced skill of a short and rapid delivery. Those players with high tosses tend to have a miserable time on a windy day because their serve is grooved and timed for a ball that drops back into their strike zone.Angle of Travel
Depending on how accurately you release the ball the angle of the travel is accentuated on a high toss where a low one that is hit not long after release simply has less time to travel out of position.Timing
The need to time the drop on the serve toss is eliminated with a short delivery and toss. A skyscraper toss on the other hand requires excellent timing of the fall of the ball relative to the backswing. Examples of servers that had the high toss with timing problems are numerous. The most memorable one for me is Sharapova though I do remember Ivanovic having problems.Remember that once the ball begins to fall it is now a moving target and the speed of the drop limits the time it sits in the strike zone. The higher the toss and the longer the drop the less time the ball will stay in the strike zone. Lower tosses are easier to time and hit.