I think sas had a good thing going a few years back but has sort of been forgotten a bit like krend. Why would you use them over parex. I don't really look much further tbh these days. You can walk into any selco and pick up o e bag of krend for £8.99 off the shelf. Parex 30kg is kind of the renderers render and around 8.50 a 30kg bag. See there's just no market for sas and the like