I have never did this and I also tell electricians that they can not go off the disposal circuit to feed the lighting over the sink and in the kitchen. I am trying to find as many places I can in the nec that will show that you can't do that. Anyone want to help ? so far I am looking at 210.23 A "small appliance Exception" . dont have a cut sheet on a disposal unit so I can't look at that. 422.16 B1 is no help on this. I may be just too tired to find this right now ! LOL. and if it is a small appliance, should it be wired in 12 instead of 14 ? . Looking forward to responses on this .. Thanks !