short game - returning spinny balls short

Been working on my short game and would appreciate some tips:

A short ball with light to no spin is easy to return short with more spin, putting the other guy in a worse situation.  But for the life of me, I can't keep balls with heavy underspin or sidespin short*.

I can fast push a short heavy underspin ball - take the ball on the rise / top of bounce, driving through the ball with an open racket.  Ball goes to the edge (long).

I can put heavy spin on a heavy underspin ball - take the ball on the descent, brush underneath loading up the underspin.  Brush sideways to add side spin.  These also go long, more slowly.

But a short (just over the net) and spinny (enough to bring the ball back into the net) ball, I can't find a way to keep it short on the other side, for me its down to the above - either turn that spin into speed on a fast push, or spin of my own on a spinnier push of my own.

For me at least, flipping really close to the net, with a spinny ball, is quite hard unless the ball is high, a high spinny ball is of course dangerous for the other guy because the underspin becomes topspin on my own flip.  So assume the ball is low (though flipping tips also appreciated).  I've had enough of my own spinny by too high balls spanked back to learn my lesson - lower is better than spinner.

If the ball is a little deeper, its attackable, just wondering about this particular case - too short / low to attack, and spinny.  How possible is it to keep these balls short and low on the return - is a fast push or spinny push deep the main options?  Thanks!

* EDIT: For a short ball with a lot of sidespin, I guess it can be kept short by going with the spin instead of against it, giving the opponent back what he gave me.  But with underspin "going with the spin" is gonna give him a topspin ball.

Use Seemiller grip with Dr Evil OX on the back.

Just off the bounce dude..

try doin the same serve to your opp. and watch what he does