That's exact what I bred these for, multi purpose mutts. In do get on with collies and terriers in general and don't really get on with spaniels, they make me dizzy watching them lol that's the reason I tried themlol yea watching thm going round and round can get annoying was thinking of going along the lines of terrier x spaniel but there's always that chance of them going to ground.especial if the terrier used is from digging stock.where as with collie x terrier I think theyl strugle getting to ground.however I supose some pups in A litter will go more to the terrier size and be able to ge