Classic Forehand Or Modern Forehand?

Should you try to hit a classic forehand or a modern forehand?
There is a lot of confusion when it comes to the differences between these two.
What many players and coaches don’t understand is that a great forehand always has the same fundamentals.
With great fundamentals you can then decide whether you want to stick with the classic version or implement elements of the modern forehand.
In this video OTI Instructor Nadim Naser explains the most important difference between these two forehands and it is not the closed stance vs. open stance.