1/2" SCHEDULE 10 PIPE "D1@Boss-Extrude1@PIPE HALF INCH SCH 10 316.SLDPRT"" LONG

1/2" SCHEDULE 10 PIPE 38.000" LONG

Top line is text in description property of part file. Second line is evaluated value.  Sometimes BOM evaluates it the way I want and other times it just evaluates all instances the same.  How do I get it to evaluate for each specific configuration consistently?  Thanks.  Brownlee.