1) no, it’s not continental. You change the grip.
2) very effective. For ball that have little bounce off the glass, this is sometimes the only way to get the ball back
3) most of the time, you want to hit it fast to the opponent’s body. Play soft and they can do a drop shot, play a poor lob and they will smash it
4) it’s a grip change to open up your racket to face the sky more, and you hit the ball forward (not up)
>most of the time, you want to hit it fast to the opponent’s body. Play soft and they can do a drop shot, play a poor lob and they will smash it
I don't really see how you play a solid fast ball in the situation OP described. That's a pretty high risk move and when the opponent can block it, you are done. I expect the opponent to be very close to the net so I'd just lob this on most levels.
If you can hit a decent lob, that’s the first choice, but if you can’t, then fast to the body or high to the backhand are the next best choices. If you hit it fast to the opponent’s body, it’s a less comfortable block which will be more difficult for them to control.