Nice Playing Greg, This tune is on my standard play list. All I can say about the differences in how that is played is- Welcome to ITM (Irish Traditional Music) lol.

I play it similar to you. Nice ornaments BTW. If played as written you'll see most jigs having lots of triplets in 6/8 time. Many players, as you've noted here, even well known ones add a lilt to those notes or change the tune slightly, not as bad as Hendrix on the Star Spangled Banner..but still.. The triplets end up being more like dotted 8th notes. Everyone still gets to beat one, it just happens differently. Ornaments are like cream in your coffee. Everyone seems to do that a little differently or not at all. 

I guess I sort of gave up trying to follow some of those recording exactly. Kevin Burke especially has a style that has made him famous. He does some odd stuff sometimes which ends up sounding better than the original. Really it's from  the Sligo persuasion. He's a master of his version of ornamentation too.

Another thing you've probably noticed by now is depending on the instrument played the musician looks at the tune a little differently and therefore plays it differently. I especially notice the pipers or flute players doing this. Since this tune was likely written for pipes some fiddlers try to add that same personality to it that a flute player does, example being a finger trill will be finger ornament on fiddle. We also try to imitate bagpipes the same way.