Sluggish turnout: logjams later?

With turnout figures falling in a similar but often quite a bit lower ballpark to 2010 (from our unscientific survey), several polling stations are currently experiencing queues way beyond those of 2010. We also hear EONI were still seeking polling clerks this morning (and appealing for counting staff in several areas we know of).

Is a lack of manpower adding to delays caused by the number and extent of ballot papers? Will 10pm see people turned away with stations unable to cope with people visiting late? Will staffing shortfall impact on the count too?