Freefall wrote:Even transposing shouldn't be possible - check peg, see number, place marker, place SI unit. If a mistake is made (and it can be) the wrong placement will show up. Foolproof again?
at the last event I planned we split the hangers into teams of 2 - one put out the stakes, the other the boxes afterwards. in the two days before the event (the second of a two-day event), each control-hanger visited the sites where they would be putting the stake out. Any sites they didn't find the tape I then visited on the evening before the event, after they'd put the stake out, to check it was in the right place.
To ensure no transposing, the person putting the boxes out (morning of the event) had a course programmed in OEvent and punched each control as they placed it (in a specified order) followed by a download to check they'd put all the boxes out in the right order. On the morning of the event I then only had to visit the controls which hadn't been successfully punched (in all cases due to the forgetfulness of the hanger!)
I reckon that system was pretty foolproof, and avoids the controller or planner having to visit every control site (of course, you have to trust your hangers to some extent, but the doubling-up, punching and programmed courses means there's plenty of checks on them!)