Nothing to add to Brett Clark's analysis except that you should be willing to lose more games for a while without going back to your initial technique. It pays off in the long run though
Since you are all my buddies on this website, let me give you a fuller explanation of what happened in that match and my technique.
As many of you know, I have bad knees and rheumatoid arthritis as separate, co-incidental and co-operatively destructive phenomena. My style of play was more influenced by my health back then when I started - I was largely a blocker who tried to avoid moving unless necessary as training hard always hurt my knees. My first coach was a 2300+ chopper and we hit so much that I developed a decent exchange game and I also picked up his heavy push. However, I never learned to loop properly or attack backspin though I had a good hitting game for my level.
My current coach also coaches my opponent in that video - of course, being younger and fitter, my opponent has gotten better quicker. My current coach places an emphasis on aggressive serve return and third ball and leaving good defense as your last resort when your opponent has too many answers to your offense. Ultimately, he wants you to be able to attack but to also be able to adapt to what our opponent does not like.
So to cut a long story short, I have played my opponent for over 3 years in club matches and tournament matches. He has one of the best slow topspin loops on the forehand in my club and in general beats choppers easily. In the beginning, when he was younger, I used to be able to block those loops over the table. But of course, as the young get older and stronger and better and faster, the spin is more and the timing is riskier, and my knees don't help me get there on time.
The good thing is that it is because of that opponent and the other junior coached by my coach that I have had good high level attackers in my club to play with. When Carl wonders where my fast pace of play comes from when you don't put pressure on me in serve and receive comes from, it is because those kids are trained to annihilate you if you don't put pressure so most adults compared to them seem slow.
But the kids are now counterlooping my opening loops and I still struggle to do the same to theirs. I push well sometimes, and I get the slow HIGH opener. And usually, I counterloop this off the table. In fact this video is one of the few moments I did not, So why did I play this particular shot?
Well, I saw Matt Hetherington play my opponent at another venue. And I saw Matt Hetherington do this kind of shot against the slow spinny loop. My guess is that Matt's shot probably used more sidespin, which I have avoided for a particular reason not worth delving into. But I also noticed that the particular loop that my opponent did in the above video was relatively weak compared to his usual offerings so I took a confident crack and got lucky.
The technique that Brett showed in the video is what I would try if the ball was deep and relatively low but in my personal practice, I have found both shots effective and consistent, but it is virtually impossible to use Brett's technique in the original video on a ball as high as the one in the video unless you take it early over the table. So Brett posted a video today showing the techniques used for high balls. Some of you may find it helpful.
Hope this helps. I will of course work to be consistent and use the best techniques as I can.