Why backstab, Did you not bid the job high enough to make a fair profit? I don't mean to come off rude but it has been my experience and many others that backstabbing is going to cause problems in the fututre.

Do you really want others in the future (if someone else ends up doing their electrical work) explaining to the homeowner that the reason they are paying a service call and having problems is that the electrician who wired the house tried to save time by backstabbing the devices?