Merrily Kiss the Quaker is not a very good slide to dance to, Denis Murphys is better, The Celtic rose of Texas is a good dance, to dance a slide to. I have played a lot for dancing, and how you play is important, ,however some tunes are better than others to dance to, without a doubt. The Geese in the bog is imo a good dancing jig. IMO Merrily Kiss the Quaker is better to jig to, than as a slide, it is to do with how it is notated. The dancers soon let you know when a tune is not suitable for dancing, slides have to have a second part that is good for the slide feel.