I forgot to ask in my last post. It looks like my 272xp is going to be put on the shelf and I will be ordering the D7900. The dogs on my 272xp with a 24" bar are not as agressive and prominent as the Dolmar. If I go to a 24" bar on the Dolmar, will the difference in the dogs offer less of a cutting length or should I go with a 28" bar to compensate for the larger dogs. I read a post that said the saw is well balanced with a 24" bar and may be a little heavy in the nose with a 28" bar. I won't need the full 28" length on a regular basis but its nice to have it if you need it. And it is only a 4" difference. Good thing my wife isn't here to wave her pinky at me!