Sierra Nevada always tastes over carbonated to me. Looking forward to the cans though. It'll be on my next backpacking trip for sure.
As much as I love their beers, I will agree with you that SNPA tends toward over carbonation (made that way for American tastes, I suppose). The excess gas masks a lot of the good flavor they pack into their ale.
Easily remedied, though...I always pour it into a pint glass and give it a vigorous stir to release a good bit of the carbonation. To me, the already fine SNPA tastes much
better when a fair amount of the carbonation is stirred out of it.