been trying to find more info on these types of systems. This was a great thread. I dont have experience using one, but a colleague ran some of our material through a r134 system here locally, and I was so impressed with the full spectrum oil that he made. Hence why i am trying to find more info. As was previously mentioned, we saw the same results. non-decarb produced really low yields, but the terpenes were incredible. I think it was 41% CBD and 20% terps. debarbed before extraction (which wasnt done well) was almost double yield, but terps were down to 7%. I never ran a residual solvent test, but trying to get some more to run that.