Hello Fxxxrr,
My old red has evidence of having two springs as well, Having not driven one with this setup I cant comment from experience but I feel that having the springs there would cause strain on your ankle - from fighting against spring pressure. Although it probably did aid the primitive mechanisms return-to-center ability.
It would probably work just fine without the springs but you obviously put a lot of effort into making some so it would be a shame to remove them
Cheers
Greenfielder
