A memory which really stuck re. hand flying supersonic was how solid it felt - and how the extreme TAS (about 1200kts) vividly demonstrated the relationship between TAS / angle of bank and turn rate: you rolled on 15 degrees of bank and it seemed like the HSI heading reference had stuck - it just didn't turn. From memory turn radius with 30 degrees AOB at M2 was about 50nms...
Re the autostabs: it felt like the puppet's strings were cut with them off, but switching to Mechanical Signalling as well made it truly horrible. I only ever flew the sim in this config, I understood they used to do it at base but stopped it because they feared lives would be lost. A pal once memorably described it as like trying to fly a dustbin lid around. And so it was! Plug it all back in (Electrical Signalling and Autostabs) and it all snapped back into shape beautifully. So ahead of its time...
There were no doubt pitch trim changes transonic due to the mach trim system, but a more obvious effect in the 0.99-1.3 range was due to shockwaves forming and fading assymetrically causing minor oscillations in all axes: if you watched out front while hand flying the accel or decel you could make out the nose descibing what felt like figures of eight as the trim changed in pitch and yaw. Roll too, and gentle pressure was required on the cc to avoid overcontrolling and PIO - a bigger problem with the Conc than some other types...
Memory lane - this is fun!