I use Service 1 on tour and I have a lot of problems with the consistency of my serve.
I have 53% power and 46% consistency with 46% precision as well.
It's really hard for me to serve consistently at the same percentage. I can go from 70% in one set to 30% in the next. Also the speed varies a lot on my serve with the first serve accelerations. Some are crisp and max power but others go in and are relatively weak even though I serve the same way.
What key sequence do you hit to serve CRISP first serve at max power nearly every point? How do I charge my serve and release to serve hard more consistently?
Please give any advice.