Numerous posters have pointed out that from their first hand experience there is a significant difference between severe turbulence in real life compared to the comfy environment of the sim.
Should task specific "turbulance and stall sims" be used?
They need only have essential cockpit instruments to reduce building and running costs. One version for bus and a second for boeing.
This bare bones, one size fits all generic cockpit concept has proven successful for HUET training.
Is there enough data from recent stall spins or severe turbulance to replicate the physical environment?
Rather than a full size cockpit on multiple actuators a smaller capsule on the end of a robotic arm is able to generate the G forces in any plane, like these F1 and Diamond aircraft sims.
German researchers claim first: Robotic flight simulator - AOPA
Giant robot arm used as F1 simulator - CNET