I have a friend that has Eurofelt. It is mixed with sand - I don’t know what kind of sand. I don’t think it would work very well with stone dust. For starters you need to have certain types of sand to mix with textiles, otherwise they just sit on the top of the footing. Second - I don’t think it would provide much cushion.
I have a textile but not Eurofelt and Premier was very helpful in selecting what kind of sand that would work best. So I would ask the Texstride people if they think their product would work with screenings/ stone dust. From what I have seen of Eurofelt I think it wouldn’t work that well with stonedust. You might be better off with shredded rubber.