> I cross reference Google Maps with Waze all the time back when I used it, but I wouldn't dare call Google Maps unreliable Unless "back when I used it" refers

> I cross reference Google Maps with Waze all the time back when I used it, but I wouldn't dare call Google Maps unreliable Unless "back when I used it" refers to pre-2013, I'm not sure I'd describe that as cross-referencing.