I don't think interacting with a large number of people will necessarily improve your results.  I take myself to be interacting with a large number of people in the target group.  I also was part of the beta-testing.  I still misfired.  Why?  Here is one reason.  When you talk to people, they will tend to lean towards certain views.  So, it's impossible to predict how many people will say "other".  I highly suspect it was pure puck who got this right and who got it wrong (sorry, Alex).  What we should be looking at is how many people got the majorities wrong.  That's interesting!