When I transfered my beer from primary to secondary last week I thought that there didn't quite seem to be 5 gallons in the carboy. I just took my empty carboy and filled it was 5 gallons of water to check where exactly 5 gallons would be and it looks like I am close to a gallon off. I'm not too upset seeing how this is my first batch and still learning everything. I am thinking that I either didn't top off with exactly enough water and then the loss from primary to secondary did me in. So I guess what my question is, if I was to bump up a kit that is recomended for 5 gallon patches to say 5.5 gallon batches, what are the downfalls in doing so. Will .5 gallons more throw off the ABV and taste off that much. Will a full gallon more throw it off a lot as well. Just trying to figure out in case I want to do a bigger batch next time with a 5 gallon kit. Thanks.