Thanks, just thought of something else, we went with a chamfered edge as opposed to a sharp edge, I wonder if that would have impacted my company's decision to double up or mitre. I would imagine mitering would be more work, for sure.
And yeah, I'm sure he wouldn't' have a problem with the thicker lip since he will build the cabinets to accomodate for that. I didn't know better at the time, otherwise I could have added some wood in there myself.