I can see where this is going! Has MoD claimed the two are unrelated as the seats are different?
What I see is that the gas shackle operates differently to the scissor shackle, to such a degree that the problems encounter with the Hawk seat are mitigated by the modification. A modification that was embodied on Tornado seats only. Why?
The mod as a whole was advertised as improving low altitude performance
You can not get much lower than Flt Lt Cunningham's zero level ejection.
DV