midget having properly read your other thread, I think it would be a good idea to talk to the boss midwife about your last delivery. I do not think it is too late, as the trauma is clearly still with you, so I doubt it would make it any worse, and may help you decide this time. My concern is the fear you feel. I can so empathise with that. The fact I had a section with my last helps with my decision with this one, but thinking back to last time I was crippled with fear, even with a debriefing, and short of being off my head on Valium, nothing would have helped me. Being in the same hospital with same consultant is likely to trigger this, no matter how much hypnobirthing you do. There is your partners feelings to consider too. My DH also thought he would lose us, or be left on his own, and men rarely get the chance to talk things through.
Of course, we are all different, and it may be that you start labour naturally, and breathe LO out and have a positively orgasmic experience that keeps you on a high until retirement. I seriously think in order to stand a chance at this, a debriefing should be done ASAP. I know that with some traumas, they should never be discussed during pregnancy due to potential risk to mental health, but I do not think this would be so in this scenario, and if it were, they would tell you. Good luck buddy!