I have read about ECores and saw the Fram Youtube video about various endcaps. I have never seen an ECore filter cut apart but may buy and cut one just for education. My question is this, has anyone ever seen an ECore fail in any manner? Not trying to start an argument, but, the ECore seems sturdier than the Fram fiber end caps. The Fram fiber end caps are just lightly glued onto the edge of the filter pleat, where the ECore seems to use a deep layer of adhesive that soaks into the edge and sides of the fllter pleat. Thanks in advance for any advice.