Here is a useful exercise for the EC, take the first bar of Drowsy Maggie, which has a crotchet then six quavers, play the first crotchet in the same direction as the first quaver then reverse for the next two quavers,then reverse for the next two quavers, then reverse for the next two quavers.then either reverse or keep going the same way for the last one.
or crotchet quaver then reverse, three quavers,reverse two quavers.
I am now starting to use a paired quaver then reverse,to some extent in polkas.this gives some idea,although nI have been playing it in a bit since then.
http://www.youtube.com/watch?v=44Td1lJL0eQ