I have not used BE yet, but the guy who developed it also created EA (EecAnalyzer).
EA is an amazing program, and I am sure BE will be just as good.
The 'Update Only' check box will be checked by default when a change is made to a tune.
For what ever reason, this option tends to randomly corrupt the .bin/.ccf file when loading.
It is really confusing... You open the .ccf file that you are currently running in the car, make a minor change (for example upping the idles speed 50rpm), then the car runs like total crap.
I thought it would have been fixed with the new software update (a couple of months ago), but I guess this improvement was overlooked.
Another good program, which is a little better developed, is TunerPro.
TunerPro can be found on the moates site... Moates.net. TunerPro is free, unless you want to make a 'donation'...
Or
PCMX can be found for $150, last time I checked the price.
These 2 programs have been the standard editors for some time now, but BE seems to be taking over a fair portion of the Editor market...
my random ramblings...
jason