[turretslug]

That "drop-off" scheme was the original idea, I'm not sure how well it works in practice but it seems reasonable in theory. Apparently, it's not unusual to find that they've been through rebuild at some point in the past where someone has diligently wrapped the leads round the terminals thinking that the original construction was sloppy- it can go against the grain for folk who spent years working with the principle of the "secure mechanical joint"- but it defeats the safety interrupt function.