Dragan,

I see what you mean. But personaly would not advertise this, if you come to a point, where you realize that classA is not good enough for you and should be replaced with a classB, than, but that's my personal opion better to delete the wrong class and rebuild with a clean new correct class instead of doing things like you said "it may be unpredictable" and "some of it may even work"

But once more that is my personal feeling, so I would never advertise this.

Koen