I trim around my silkies and polish eyes as well. Amazing how much more confident they are when they can see!
Not sure about comb genetics, but the SOP is mulberry colored walnut comb.
If you are breeding your silkies for fun, then it probably does not matter.
I was about to trim one of my pullets today but decided to try the hair tie idea ..probably won't last long though I tried white to match so the others won't try to peck her... Before and after pics... She was lovin the new hair style!


