Thanks RAL. That is a good read.
I agree that if I use the GRI's with internal EOLR's, it wil mostly be for convenience. However, for a DIY'er (like myself), there's probably a bigger chance (compared to the short-to-EG-between-the-EOLR-and-contact scenario) that if I decided to retrofit an external EOLR, I would end up screwing something up... accidentally cutting/breaking a wire "in the hole", wiring it incorrectly, etc.
I agree that if I use the GRI's with internal EOLR's, it wil mostly be for convenience. However, for a DIY'er (like myself), there's probably a bigger chance (compared to the short-to-EG-between-the-EOLR-and-contact scenario) that if I decided to retrofit an external EOLR, I would end up screwing something up... accidentally cutting/breaking a wire "in the hole", wiring it incorrectly, etc.