I have done it before. but not with a full cap.. just a topper. I would imagine that it should be easier with a full cap because like you said no blending issue.. When i got it, I had to blend it a lot myself. I would send her a picture of exactly the style you want etc. I can't see why she wouldn't be able to do it. If you send clear pictures of what you want, and there is no blending issues.. than I guess its up to the expertise of the person. And I think most peopel were happy with her work