Does it have to stand up to close scrutiny?
not especially actually – you’d certainly know we’d been there after we set it off. – a turf cutter might be easier to track down on hire. Its quite rough ground and quite gritty soil rather than neat lawn so not sure if a turf cutter would put up too much of a fight over the area we need to cover – can give it a go though.
Part of the reason of setting the cord just under the ground rather than on the surface is it helps shape the mark we end up making and economises on the amount of wonder-bang-string we need to use but it also helps suppress the sound a bit so we don’t burst everyones ear drums!
Going to have a play next week, weather permitting.