had plenty of three,s to ground at the same time ,same earth etc,had a pair out last season when the dog bolted (no nets with me or lurcher) when i was digging the vixen the dog kept returning to the hole it bolted from obviously concerned about his vixen..dug litter of seven years back when i lived in north east.felt like paul daniels puling em out of a hat lol..atb..darrell.