Fed should have a good slice but there is nothing in the game that gives him that advantage. Guys with Slice Invasion/Poisoned Slice like Murray/Simon/Chang should be better but I'm not sure that I noticed much difference.
Should be better with slower slice at least, I mostly liked it for the low bounce which isn't as effective now or playing a control shot to kill the pace.
Drop shots are still ok for me, the update doesn't seem like it will make me play that much different.
Gameplay tweaks are alright, wouldn't mind some DLC pros/venues/gear though. PSN store link is still empty