A slide in 12/8 has a totally feel to a jig in 6/8 played faster. The accents are different and if you're stepping it it's a different rhythmm of steps. Also as a dance tune, if you play it too fast I defy anyone to dance to it!

All the best

Oggie

PS went to a drum workshop last year given by Virgil Donati where he explained building riffs in 11/8 and 13/8 - mind blowing. Even more so when he played half the kit in each time at once!