Anyone have much experience with changing an articles body completely with an entirely new article, but still using the same keyword with a very similar density? I had an article written on a subject I don't know much about and over the past year it's ranked very well, but I'm getting a lot of comments about it being innacurate and talks about the wrong thing. I had a much much higher quality article written about the real subject and plan to replace it but keep the same title/url obviously. Anyone done this before? Did you see a drop in rank? I'm surprised it's even ranking as high as it is with all the mis-information it has.