Carbonation of a big beer

[showcow]

Hi guys, I'm a reasonably experience homebrewer (200 gallons lifetime maybe) and I've not done too many big beers. I've got a beer I bottled on oct. 1, 2011 that had an OG of 1.088 an an FG of 1.010. I used a 2nd generation batch of wyeast London ale III, with a 3L starter. I am drinking one now, and it stilllllll is not carbed. There is a slight carbonation, and it's more carbonated than it was at thanksgiving... But shouldn't it be pretty close to ready at this point, more than 3 months after bottling? I can't remember the amount of sugar I used, but I weigh all my priming sugar, so I very seriously doubt this is a priming sugar issue. It tastes great - but it has less carbonation than even a cask beer. Any thoughts?

 

[Pilgarlic]

Not unusual in a big beer. Really. Relax and get busy with other beers. It'll carb up in time.