FX Slug Power Kit

Shipping this kit in larger quantities won't be available for a while, I assume because the dates are getting pushed back like every two weeks, everywhere.

I have the diy pin, only missing a lighter valve spring.

Interestingly with the PP upgrade FX increased the valve spring "load", and now we trying to lower it again, also the robber ball back to the function again.

Anybody measured what is the wire cross dia or the spring full specs? I would like to ask around at my RC hobby stores to get me one close enough.