My definition of 'comfortable is:
Being able to almost guarantee you can put the ball in the box, at whichever pace is easiest to you, whilst doing the full service motion (or most of it). This can be a flat serve or a topspin serve.
For me, I've been playing for a year and a half, I've hit literally thousands of serves, it must be around the 3500 mark now. And still, I only have a success rate of the ball going into the box of around 60%. I'm not even attempting to serve fast, I just go through the service motion and hit the ball at a 'default minimum' speed for me which I find comfortable. For flat serves, its 55%, topspin serve its slightly higher perhaps at 65%. Its frustrating as hell. I can get a much higher percentage by short-cutting my service motion, for example, just tossing the ball up and hit the ball, or even doing an under-arm serve (cringe), but thats nowhere near as effective as even my slowest flat serve with a full service motion (if it goes in).
A lot of this is down to not having a coach, but I'd like to know how other people have got on with their serve and how long it took for them to get comfortable with it.
Being able to almost guarantee you can put the ball in the box, at whichever pace is easiest to you, whilst doing the full service motion (or most of it). This can be a flat serve or a topspin serve.
For me, I've been playing for a year and a half, I've hit literally thousands of serves, it must be around the 3500 mark now. And still, I only have a success rate of the ball going into the box of around 60%. I'm not even attempting to serve fast, I just go through the service motion and hit the ball at a 'default minimum' speed for me which I find comfortable. For flat serves, its 55%, topspin serve its slightly higher perhaps at 65%. Its frustrating as hell. I can get a much higher percentage by short-cutting my service motion, for example, just tossing the ball up and hit the ball, or even doing an under-arm serve (cringe), but thats nowhere near as effective as even my slowest flat serve with a full service motion (if it goes in).
A lot of this is down to not having a coach, but I'd like to know how other people have got on with their serve and how long it took for them to get comfortable with it.