I've noticed with my bottles that the carbonation is inconsistent within the same batch, some are almost flat and others are geysers! I take my corn sugar, heat it slightly in some water and then mix it in with into the beer in the bottling bucket. Despite some gentle, but thorough, stirring I can't seem to get the consistent carbonation. I had some advise to just simply throw the sugar into the bucket and begin stirring, but would that really mix in more effectively than dissolving the sugar in some water first?