well yes 2 or 3 hole better i know were yous are coming from but why ferret if the ferrets is going to lay up all the time well i don't ever need to do 30 or 40 holes if i did i would need at lest 4 ferrets to ferret it, aye well i do not ever need to dig as all my ferrets are feed well before they go out to do a days ferreting i never used a ferret finder yet and can say its waste off money, if you can locate them the way they did years ago then why pay the money but everyone to there own people