Anyone replace the rear shock spring?

[Big Rick]

I have not replace mine, but I did see where Traxxion has upgraded shocks for our bikes....little expensive, but if you believe the hype, might be worth the money

[Vudu_52]

I too am wondering this. There don't appear to be any specific springs for the F6B.
Just wondering if progressive springs for the standard wing will suffice.
Does anyone know if the F6B and standard wing share the same spring.