British Orienteering rules section 17 wrote:An approved electronic punching system must be used, with a back-up punching system
This isn't required at lower levels of events (local / level D, or regional / level C). Do people see the above being done in practice? Maybe most competitors wouldn't even notice, but do clubs / planners still put out backup pin punches? Do controllers of level B events always insist? It was pretty important back when electronic punching was introduced, when box failures were not uncommon. These days the technology (well SI at least...) is much more reliable, and having pin punches is a faff (especially if they are dangling on strings that get tangled up, sightly less faff if permanently and rigidly fixed to the stake, but hard to do that with lightweight fiberglass stakes). I'm wondering whether things have moved on, and clubs / planners / controllers habitually ignore this rule, or whether people still stick to it?