Yes I try to have my ornamentation options worked out in advance,Iknow that rules out spontaneity, but I always keep certain fingers covering certain rows so they cant get lost and work out my ornamentation options around this principle.Yes I also use drones and bellows wiggling.Another thing I like to do is[lets say in a jig]is to turn a quaver into two semiquavers using cross fingering ,very often when the second note is on the opposite side E g .The lilting banshee E A A BECOMES EE A A.The first note becomes like a quick grace note, and your two A,s are on the opposite side giving time for your left hand fingers to re position.To be precise the first two e,s are not actually semi quavers. but are short, long. I often cut between two notes of the same pitch..E A A could become E A BA, The B is a grace note stealing time from the last. Again Im cutting on the opposite side of the box.Dick Miles