Spot on mate! Unless you're going equipped to deal with them, it's the only sensible option. You should get one of those beddy x whippets that pull the fallow single handed, they'd be well up to the task!
the grey x shepherd i owned was up for it an had the drive but she was lightly built an i wouldnt risk her
she always coughed and foamed at mouth when she had scent of one
the other dog a non lurcher was gagging for it an to start would stare at them quietly an intently but when close would go hell for leather baying.