A computer implemented tool for assisting in assessment of pharmaceutical products is provided. Known nickel-based superalloys for producing components made of stem shaped single crystals do not provide sufficiently for grain boundary strength. The stops are configured and arranged to shear from the tunnel when a pre-established collapsing force is exceeded. The watermark grid or data signal can then be detected from these values using known techniques. Excess refrigerant from the methane refrigeration cycle can be recombined with the processed natural gas stream, rather than flared.