In F3J (RC Sailplane precision duration flights) We enter scores on our cell phones to a website that tabulates the scores automatically. It's simple and effective.
R,
Chris
What I think would make it difficult is that the judges have to be able to enter a score in a few seconds -- even with familiar old pencil and paper you can feel rushed to make a decision and get it jotted down in the right box. With something unfamiliar you need to make it quick, and you need to make it handle the sort of free-form behavior you see in Beginner and Intermediate, or when s--t happens. Madly clicking buttons trying to navigate outside of some software engineer's* idea of "the right way to do things" would screw up the scores for that flight.
It would be hard to get right. Particularly because people who are good enough to judge Expert but don't
fly expert are either cantankerous old men with little patience for techno-whiz, or injured younger men who are cranky because they're not flying
that day, etc..
* And yes, one of the jobs I can do is software engineer, and yes, in the past I've been the one with the bright idea that turned out to be stupid, and I've also been the one tasked with fixing someone else's "bright idea", and I've even been the Greek chorus singing on the sidelines about how someone's bright idea would bring doom and disaster, and had to watch helplessly when it happened.