both hob and jills will work,smaller jlls can get over rabbits and hopefully bolt them,i always take a hob as large buck rabbits can drag jills around underground,always enter my hob to take over if this happens,either he holds em or bolts em or if he kills have 2 dig but saves waiting,ferrets will work anytime but i always stop first sign of younguns or u will always be digging,anyway they are next years stock.good luck sure you will enjoy your ferreting.