I learn a lot about natural glues from the guys that make musical instruments they take glue making to a new level , but a interesting note on GS is they say is most people that use a glue with a GS above 250 G water there glue down to much in order to get a thinner viscosity & end up making a weaker glue the Gram strength rating system is based on a 1 to 1 glue to water Ratio , they say this 192 G clarified glue is the cats ass , long working time and good strength , thanks for posting this thread Chuck interesting !!