With all due respect to the examiners who have been selectively checked a small fraction of the many Winvote machines that have faithfully counted the will of the Citizens of 20 some percent of the voters of our Commonweath for years prior to my first official experience with them 10 years ago (many more as a voter), I have found the system to be as a whole reliable and fairly easy to work with and to explain to the Public. 

It seems to me that having a dedicated and well trained staff - both professional and we poll workers is a large proportion of ensuring that the voting Public has a satisfactory experience on any Election Day , whether Primary or Presidential. Officer Training is  primary to the folks in the Registrar's office in the City of Fairfax.

As to the "new" system of paper ballots, I was very surprised to learn that because of the requirements of the Federal ADA the City and other jurisdictions will have to purchase WINVOTE type machine to fulfill it's requirements. 

If one system is troublesome a combination of two can only geometrically increase the complexity of elections for everyone concerned.