Ive trained both the turvs and the gronys. How they end up being depends largely on the lines they come from. They can be up there with the mals in terms of energy and working ability levels. Ive seen turvs doing mondio at high levels and ive seen turvs and gronys with no working ability left in them. You need to be careful because if you start with a puppy from a breeder which isnt purposely watering them down you could easily end up with a high drive one. Genetically there isnt much separating the belgian shepherds from each other aside from coat type. There are huge differences in the lines though some are like collies. Be careful when selecting a dog or breeder if you go that route.