Thanks to Facetime and Zoom grandparents can see more of theirs who have gotten far from the home. My Grandson in Boulder is 14 and played tennis tournaments this year. I offer my suggestions from time to time, having modern access to technology. A sample is below:

THE HIGH FOREHAND VOLLEY (for Andre)

As mentioned earlier, the recent videos your Dad sent are great help for me.  And your improving and growing are impressive.   I have found many players learn quicker if they focus on one shot at a time.  Or a physical or mental shortcoming.

Some one said “… a tennis player is as strong or as weak as their weakest link, and the weakest link in tennis is the second serve.”  Ugh, double faults.  Your second serve is sound and getting better.  My guess is the second shot most vulnerable is the high forehand volley.  It looks so easy, then oops, in the net, etc.  There was a lot of times I heard some losing player say,  “… yea, I had that break point right here (mimics the hfv (high forehand volley) and blew it.

You like to play at the net and the last videos concentrate on volleys.  Your backhand volley is excellent.   You seem to PUSH the forehand.  And sometimes let the ball get in a less than PERFECT volley spot.  It should be “V” shaped.  Tighten your hand at hit moment.  The harder they hit it the easier you swing.   A lot of times you just “touch and tighten!”

Remember most volleys are hit with a continental  or even a backhand grip.   There are seven volley spots (see green book on volleys).  I do think the HFV is the only volley grip you change.  And  a clue or two ideas may be:

1. Try more of a forehand grip on HFV.  This  is less awkward I believe. 
2. Perfect volley spot is sometimes sloppy on the HFV because it looks so easy (like overheads).  Perfect movement and concentration to “…keep it in the perfect hit-spot.”
3. Many fine players select to overplay, or chose the dependable backhand volley on marginal volleys.
4. I agree swinging volleys are now in vogue and effective.  First develop a firm dependable “touch”, not power bomb.
5. Lots of pros now use the “stinger strategy” that forces a weak return —-which is vulnerable to a swinging put-a-way.   Recall the stinger?  REMEMBER, TOO ,  VOLLEYING DOWN IS BETTER.  LOW ONES GO STRAIGHT AND DEEP AND THEY GET TO HIT THEM.  DOWN ONES WIN.  QUICK LEGWORK TO PERFECT VOLLEY SPOT.
6. THE GIRLS AND WOMEN SECTION IN THE BOOK HAS SOME GOOD VOLLEY REMINDERS

Happy New Year.  Love, Pop