This is a great thread. As a 4.5 tournament player serve and volley, continental grip, lots of slice from both sides, old school 62 years old..i have been practicing the modern WW forehand with a semi western the last 6 months against the wall and in some matches with mixed results..When i do flatten it out ie WTA style i like it better especially on return of serve..The excessive wrist on the WW and poly strings necessary takes a toll on us seniors..It takes a strong fast whip to hit back a high hard topspin forehand.
Another thing to address is where the player stands
. Fed ,Djok, Agassi stand up on the baseline taking the ball on the rise and SNAP..
Ferrer, Murray are back further, let the ball drop a little more.
Here are 2 WTA forehands from Capriati and Hingis I'm now trying to copy