a good tip for all you carp anglers,Hemp pellets can offer an edge, however IMHO they cannot match the attraction and smell of trout pellets.
So if your fishery is filled in with trout pellets then give hemp pellets a go, because it may offer something different.
However 9/10 times i'd rather have a nice scattering of trout pellets around my hookbait than hemp pellets.
Hemp boilies have been tried, however they have never really caught on, just look how many fishmeal based boilies there are at the mo.
Interested to see how you get on