I've bred 3/4 to 3/4 myself, but one of mates bred a 3/4 dog to a full gru bitch, turned out very greyhoundish, he was never really into daytme hares more of a lamper, can't say how good or bad they were as It wasn't my game,but they must have been allright as he still has them allbeit they are 8 years old now.
cheers for your thoughts mate, how did they fair with brains,tempermant etc?