Do any other Delmiaworks customers have experience with LSR (Liquid Silicon Rubber)?  Most manufacturers sell LSR by volume (pint, gallon, etc).  However, when set up as a PL class inventory item, weight is the only option for this material (oz, lbs, etc.).  How do others manage PL inventory (procure to pay) when forced to buy in volume measurements?  We are starting to buy more and more LSR and need a better solution to manage this.