I don't think so, it poured fine when I had it on a regular tap. I may try to de-carb it by switching the co2 to the beer side and burping it a few times the put it back on the nitro and see if it is better.
Keg #1 --- Barrel Aged Burnt Whiskers
Keg #2 --- WAGZ IIPA
Keg #3 --- Dickens Cider
Keg #4 --- Barrel Aged Burnt Whiskers- Nitro
Keg #5 --- Highland Brewing Co. Cold Mtn. Winter Ale .....1/6th barrel