yip , the frost will kind of burn the grass , you will see
bodygrips are best used in cover or under fences , you can put them on a run but they require a tunnel of wire or wood and its not the best way ,try setting them in the burrow mouth , again , not the best method but they do catch
i only have the oe bg 116 so i will give him a go with a wire tunnel leading up where would be the best place to purschase a small number 2 or 3 fenns or springers 4s and 6s springer 4s are brilliant in my eyes i have never had a problem cant comment on the 6s though
thanks
rob