Sharkfin noise transformer

[GhostofJohnToad]

Having successfully built the tonepad fsh1.  I am up for building the sharkfin.  One thing I had heartburn over was the noise transformer for the SH side.  So I'm wondering how you sorted it out, Brian?  Or anyone that's had some experience here.  Would there be a benefit to rigging some cv type of input here? Or am I not understanding that concept?