Can I please have some guidance on a few points related to the grip. I know a little about golf and biomechanics, but some parts on tennis I haven't succeeded in Googling. When I learnt a few basic steps in tennis, in the 60's, the better players in the club taught us kids (what I now know is) a continental grip with knuckles parallel to the racket. (and turn one bevel for flat bh). The racket was at a pronounced angle to the arm. We could have hit a ball some distance just by pronating. But if you hold the racket at an angle and hit a flat shot, centrifugal force will give ulnar deviation. So what I did was to let the grip slip until knuckles and racket were not parallell and also ulnar deviate the wrist. Adding up, the racket became parallel to the arm. I hit balls (forehand) where the wrist moved palmar/dorsal flexion, with the arm and racket forming one line at impact. I never received further coaching after that, just played for fun. I recently saw a picture of Rafa forehand. It looked like he was "hammering a nail into the baseboard, holding the hammer horisontally". Holding the racket like a hammer, but horisontally. I now learn he uses a Western grip. So my first question is related to the grip. Has the most common grip changed? Why has it changed? Has it shifted from continental towards eastern and western grips? I am primarily interested in forehand, to begin with. Like I held the racket as a kid, I had a lot of wrist angular mobility in dorsal/palmar flexion. Like Rafa holds the racket he will have less wrist mobility, he will have to use radial/ulnar flexion which has less range. Why is this top player giving up some of his wrist mobility. Isn't that one source of power - to have a long angular movement for the wrist. (I am sure his way is better than mine, I just want to know why. I don't know what kind of forehand shot he was hitting in that photo.) Has the game changed in this aspect. There is much more top spin now than 50 years ago, I think? I think the windshield wiper forehand often goes with an eastern or even western grip? They use pronation to create spin? Has this spilled over to the flat strokes? Is this also related to change in materials? Modern rackets can give more topspin? Thanks for any pointers. To simply the question: Has the grip for a flat forehand changed over the last 50 years, and if so why?