Among other emotions you could bottle the frustration that both Leinster and Ulster will try to work out at the Aviva Stadium this evening.
In Ulster's case, it's pretty obvious. No European silverware to shout about since their 1999 final success at the same venue, and just the PRO14 title earned seven years later to embellish the trophy cabinet.
Their loss to Leinster in the Twickenham decider three years later is part of a litany of what might have been for the province.
