I escaped from Jaguar T2 XX828 (we both did) June 1st 1981.
Chute opened at 200ft according to Boscombe ballistics and it transpired that the aircraft rate of descent was so high that neither seat was ever moving upwards during the sequence. A very smooth ride and it didn't hurt one bit. Felt the heat of the fireball and landed only 25 yards from it - if there had not been any wind I dread to think what would have happened!
There followed a nice letter from Martin Baker and the mounted handle sits in my hallway.
Martin Baker - it does exactly what it says on the tin....
JP