Recce, are your posts intended as anything more than bragging of what you claim to have flown? I stress claim, because most who have done that don't feel the insecurity to have to brag about it. Certainly your assertion that pilots can't suffer somatogravic illusion in a modern airliner suggests you have never flown anything at all - all pilots are likely to get the leans from time to time, some more than others. Aggressive manouvering shakes up the otoliths and vestibular canals and actually reduces the illusion, so much so that the doctors at North Luffenham would tech military pilots that momentarily shaking their head vigourously would "reset" them and clear the illusion. If you'd done it, you'd know that.