i sorta agree simpler is better.... and honestly the 1hbh drive is not that big a deal....
serve is priority 1
at baseline, fh covers 65%
the 35% for the bh, the slice covers half of it.
so the drive is really just some marginal nice to have stuff in the whole game.
i wouldn't worry much about the high balls, just slice it down.
where the topspin comes in as a must have, is when you have to hit passing shots, which is usually low ball.