This is one that should definitely be used sparingly. Instaed of the standard Fsharp'. A', A', Fsharp'. A', A', movement at the start of part A, I substitute the following: Fsharp'. A', Fsharp'. A',Fsharp'. A'. Lifting the chanter yields a nice "yelp" and you might also try a staccato G', Fsharp'. A' instaed of the last Fsharp'. A' above.
This is a simple but effective variation which substitutes a D', Fsharp', A', G'