It certainly would Chris.
It's a 100% way of Competitors only getting scores for what they have really done.
Even though some organizers do have a master punch card, i'm telling you for a fact it would take forever to cheak every card against it.
We looked into the keys for the future Tailend challanges if i decide to organize them again, i think they are the way forward, not just for cheating ba5tards but for info on the time in sections, who's where and when and any damaged sections reported can be found out from who was the last person in there.
They might have their little problems from time to time but so do the old school punches ! Pins drop out, rubbed off numbers, getting pulled off lines, same pin paterns, pain in the arse to gather in and keep tidy in order.
So swings and round abouts as with everthing.
Personally if i was competing in a comp i'd feel better knowing there was cyberkeys. My Opinion.
Nick