Which manufacturers use 14mm shocks?
 

I'm running a 3racing cactus car, and I'm pretty happy with it, and pretty fresh as well ;)
They use 14mm shocks and don't provide any optional springs. And from what I've seen thats a pretty odd size for buggy shocks.

Which other manufacturers can I use the springs from?

Nevermind...
All the 12mm I read about regarding buggy shocks are actually the size of the bore of the shock body itself.
Lots of springs out there that will fit.
Forgive my ignorace.
Leaving this for public humiliation and for future search results ;)