Love the idea and appreciate the speedy reply.  Alas, no "Addition" on Sch CA interest line.  Grr.  It says Adjustments to Federal Taxable Interest - so it should only adjust Fed and NOT any state.  Yet keeps the same Fed interest amount and no add back for this on the state.

My work around was a State Modification and just list as an "Other Additions"  

Happy Taxing!