Centaurus - Id be genuinely keen to hear how its been a positive/advantage for your students, or if you directed them to do something in particular while in the Sim??, as Ive only ever seen over-reactive VSI/ALT reading eye flicker with the tell tale "quick fix" movements of the control column, and a general inability to hold straight and level.. Eyes focused inside...
It can take a fair bit of time to remedy the really troubled ones. Generally speaking where I work, the Students are going solo on average 12-15 hours with a few quicker, and a few slower.. If im going to get students to do simulations, I usually encourage them to Sit in the aircraft and simulate checklists, transitions etc, and as with many training aircraft, the attitude of the aircraft sitting on the ground is quite close to the S+L attitude.
Im always looking for ways to improve, so if you've got anything specific that works with regards to the sim or anything else, Im all ears..