File size increase after updating configuration

I have a multi-body part with 230 features.  I have several configurations set up to show different sections of the part.  I have one body that keeps reappearing every time I close the file and reopen.  When I go through the configurations (I have 17) and hide that body and save the file my file size is increasing close to 10x.  I have gone from about 12mb to 85-105mb each time I go through the process.  I have rolled my model back and stepped through it to see if I can find a feature that might be causing the issue, but nothing.  I does seem that the feature that comes unhidden is the same all the time.  I have looked at the geometry in this feature and it is fully defines, no weird references or anything that would seem to be causing this. It is getting VERY frustrating as this is eating up 1-2 hours of productivity each day!!

Any suggestions would be much appreciated.

Thanks,

Colleen

SolidworksParts And Features