OK so i made a cascade pale ale. Ive made this probably 8 times now and its a pretty regular brew in my house. I had it on gas for about 3 weeks before i poured the first glass. It was almost flat. So i gave it another week and it had just a very small bead of co2 bubbles around the outside of the glass. I havent ever had this happen before, so i decided i would try the shake method to carb the beer. I laid the keg on its side and listened to the co2 until i couldnt hear it going in to the keg anymore. I would then shake it, wake until i couldnt hear co2, repeat. I did this, at 10psi, until i couldnt hear any more co2. I let the beer sit for a couple days, poured a glass and its perfectly carbed, but has no hop flavor what so ever. This is the first time ive had trouble carbing a keg and the first time ive lost hop flavor/aroma this fast. I tested all the seals and the keg is solid. Is the shake method to blame? It seems like there are a lot of people that shake their keg to carb quickly, but ive never read of anyone losing flavor. thoughts?