I highly recommend the SFS PC. It stand for Soaring Flight Simulator.
Before I was introduced to it by a well know soaring personality, I had
dismissed a PC based simulator.

This software provides the feel, visuals and technical input to be a real
adjunct to live training. In fact in Germany some clubs use this simulator
in parallel.

I have used it in contest mode many times , as well as for ridge flying.

It is a joy to fly this simulator and once or twice a week for 1 1/2 hours
each, I am able to take my mind off things and enjoy myself.

It is useful to keep sharp in the off season as well

SFS software is written by contest soaring pilots.

I have since used other soaring specific simulators and SFS is the best in
my opinion.

It is important to have the best joystick possible.
I use the MS Force Feedback 2. All the functions can be programmed on to the
stick and base.
Flap and trim 4 buttons on the base.
as well as spoilers ( throttle control)
Head switch and reset buttons,
water dump, cable release
landing gear all on the stick.

The Force feed back stick will allow you to feel when the landing gear comes
up or down.
or when the air frame start shaking ( over speeding) the sound adds an extra
dimension.
Regards
Udo