Great Tutorial, I normally don't separate the point and flat before cutting, I will try the burnt ends next time for sure.
My only question then is why not separate and spice before cooking so you have a little fat on both - you will also get a good smoke ring around the flat on both sides.
When I was in Galveston Texas, I went to a little place called Leon's where Leon was kind enough to take me into his kitchen where he explained he keeps the point on the flat as its keeps the flat more moist even when serving.
just my 2 cents but there can be arguments for both ways I guess