I brew half batches from the 5gal all grain beer kits that are commonly available. Mostly to keep the weight down when moving things around by hand - old guy, older back. It also gives me a chance to experiment on the second half by adding some additions, so my batches are 2.5-3.5gals. I try to get as many bottles as I can so I use that last half bottle to put in the cylinder and take a gravity reading instead of drawing it ahead of time. My numbers are usually close,never right on but the beer is always great so I don't follow it too closely as some. It says in the ABV calculator to take the final gravity sample before adding the priming sugar, so I just wonder if you take it after what direction would it throw the gravity in? Am I correct in thinking it will increase the reading? Any thoughts by how much the sugar would change it?