Flat and low verses topspin and looping.
Can someone help me out here? I started playing tennis again after a lapse of a few years and have been back into it for about six months now. I attend a couple of courses and have a private lesson every week. I have been encouraged to play (and just about mastered) a topspin forehand and backhand where the ball travels high and deep and I hit it just inside the baseline nine times out of ten. I also have a fairly decent backhand slice and have been told I am of intermediate standard. So far so good. Now when I play people who also play with topspin I have a good competetive game and win regularly. But when I play anyone who hits the ball low and fast and flat I get my ass kicked every time. I either can't get to the ball in time or scoop it up or hit it with slice but every time my opponent then jumps on it and puts it away. I have tried different strategies like hitting the ball high and deep to their backhand with limited success but nothing really works.
My question is - if this is so effective on me, wouldn't it be better for me to play that way as well and hit the ball low and flat all the time and save the topspin for the odd shot where it would be useful?
My coach says to stick with the topspin. Any advice gratefully accepted.