Ps. I also think that aircraft should be certified to operate, without limitations or modifications, both with, and without the system being operational.
...which couldn't be removed without making significant design changes...
I wasn't considering complete removal of the system, only flying with the system inoperative.
...but they both agreed with Cirrus that using the parachute was a better way to recover from a spin with minimum loss of height - 920ft lost in a 1 turn spin with a parachute recovery, and typically between 1,200-1,800ft lost in a 1 turn spin with a normal aerodynamic recovery.
This comparison would only stand up if the end result of a 'chute pull' was the same as a successful aerodynamic recovery, which it clearly isn't.
It seems to me that a compromise has been made here.
MJ
