So, using a third mixed shader did give the two stripes but it halved all the original values so I ended up with a dull colour and a lot less reflective.
I’ve now managed to get to this point using Spikey’s diagram but the lower stripe has now lost its reflection (not a biggy as the lower one wouldn’t get as much light) as the BSDF is only going into the top shader.
Do I need to make a separate BSDF for the lower stripe?
