A couple of observations, if I may, oakman.
They both look a little blunt to my taste. That is to say, I'd probably drop the tool a little bit further than you do. But near as I can tell they are both about equal, so that wouldn't be much of a factor in the comparison.
If I had a gripe at all with what you're doing, it would have to be that with the differing angles/lighting between the last two images, it makes it somewhat less easy to draw fair a conclusion. I like the lighting and angle better on the first tooth front view. It seems as though the leading edge is in a lot more shadow on the second (both on the top of the top plate and on the face of the side plate), and the view is from more over the top looking down. I'm sure there's a difference between the two teeth, but if you could precisely duplicate the setup when snapping the shots it would be a bit more helpful in fairly showing what you want to show. As it is, your comparison comes across as slightly exaggerated.
It would also help to make it clear for posterity that this thread directly relates to <a href="http://www.arboristsite.com/showthread.php?s=&threadid=9078">another</a> one.
Don't take any of this to mean I'm not thankful for your efforts. It's both educational and entertaining!
Glen