Shoulder/core rotation is good, use of the arms can be improved. You are trying to drive the ball rather than learn to spin it slowly first. It's like trying to drive a car at 160kmph before you learn how to steer the wheel.
Start with the loop that Sean O Neill demonstrated. Learn to use the arm to spin the ball first. Then you can move on to this kind of stroke. I will find the video for you.
You asked questions couple of questions about shots that you missed in your doubles match. Part of the reason you missed those shots was that you were making drive contact not spin contact. Let's get your spin contact on the right footing first. You are a talented server so if you work at this and use the arm properly you will get great results in no time. You just have to be willing to go through the steps.
First of all thanks for taking some time to help me by sharing the first video above, that is new to me. Though you shared the second video already, the first 13 seconds speaks about the problems I face after the first session which focussed on improvement. It is valuable and could help me to set my mind back into the right attitude before the next practice session
Shoulder/core rotation is good, use of the arms can be improved. You are trying to drive the ball rather than learn to spin it slowly first.
Thanks for coming back on some improvements. To work on more spinny balls, what kind of drill is ideal. Should I use the same one but with less power. Is that what you mean? Ah you mean like in the first video. There seems to be less spin in that one right?
Part of the reason you missed those shots was that you were making drive contact not spin contact.
I couldn't understand it fully but I will try. Before that I would like to clear the difference between How I look at Loop and Drive.
Loop - The spinny ones used to counter low spinny backspins much like the third ball attack. It could be slow or fast.
Drive - The much faster ones which contain ample amount of speed and spin coupled along with full body extensions.
Is it right or did I patzed it again?
If this is right, do you want me to concentrate on the ones like Ma long does in this video below
You are a talented server so if you work at this and use the arm properly you will get great results in no time
Thanks mate I will work on some elements discussed in these threads to undoing the wrong practices. During my practices from the last year, i had done enough on basic strokes. But, due to the infeasibility on availability of the coaches, I trained wrongly. Now is the time to set it back as well.
When you spoke about pain on shoulder, it was indeed right. After yesterday's practice, I had very less pain today. I just uploaded some videos on my yesterday's training from other camera angle. This could give a better view on other elements of the play as well. Further, I would like to know what do you think about those flip and touch practice videos which I will upload soon as well. Thanks for commenting, I appreciate it.