Well even editing the source files can make a core file give you incorrect data. Sad but true it seems. If your not getting crashes like once a day or something though you might as well continue on until they become more annoying to bother with. Why wait a week or two for a crash when you could have gotten a lot done in that time.
Just after you get the changes in how you want and your going to log out for the day go ahead and do a reboot so its running a good fresh run so if it crashes while your not around you have a good core to use when you get back on.