not my type of cross, i know f**k all about earth dogs tbh but i know how they do it and what they do i know what breed is usually bred for what purpose and i know a soft jawed terrier from a hard jawed terrier etc etc. but in my oppinion if it does the job then who gives a f**k what its got in it, like i said it wouldnt be my choice but i wouldnt slate the dog if i havnt seen it work, who knows in a few years the chihuaha cross may be the top choice of most terrier lads,