Originally Posted by OHBH
Wrong mentality right there. Serve the way that you always serve no matter the situation. How many times do you double fault in a match? Hopefully not much to begin with, odds are you won't double fault unless you psych yourself out. You are more likely to double fault when you are trying to push it in the middle of the box because you lose racket head acceleration and spin.
Best post in the thread. I would also add that your serve is only as good as your second serve. Start working there. You want your second serve to go in north of 90% of the time, so < 5% DFs. You want your first serve to go in about 60-75% of the time, not "wild". If you can do that north of 100 mph, great, if it more like 85 mph, fine, whatever it takes.