Hi Jaybee,
I don't know much about the cdr charger, i have heard that some like it and I have heard that there is some problems with it. But I certainly don't want to bash it as I have no first hand experience with it. I will say that it looks nice.
The Pro Trak will give you all the info and cell breakdown on 6 cells. I have charged my 8 cell plane packs on mine but you will not get individual cell info when you charge that many at once.
Chris