Rich Thank youHoly cow ,,,, finally found it again . Post 19 . He talks about it around the 2:30 mark .
https://www.smokingmeatforums.com/threads/whole-spare-ribs.284896/
Also I trimmed up 3 racks of spares this morning . They all had that brisket flap you had , only one had the short section of bone .
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Richie
