Shadowplay with a heavy racket

This reminds me about a few years ago when I was learning strokes, mainly the forehand stroke. My coach had an old paddle blade, taped with a bunch of metals for weight, and he told me to grab it and practice the strokes for as long as you can. What I notice is, obviously, it tires pretty quickly, but it only really works for strengthening your arms instead of perfecting a technique. As Alois says, it does kind of mess up your technique since once you feel "accustomed," I guess you can say, when you start using your actual racket, it will feel so different, and the stroke is different from the heavier blade. I'd recommend using dumbbells if you really want to strengthen your arms, and practicing your stokes without anything but your own racket, especially if you're an amateur, you cannot go back and forth with different equipment.

Illia,you have just stolen that question directly from my mind :))

Alois-different swing?
How do you mean?

Yes it is true it leads to a different swing, but somehow it feels like this swing is even better for table tennis as I can generate more racket speed with it. That could be a delusion, though.