Originally Posted by
RubeRad
wrt _ForceD_ and mdarnton mentioning seams, I was worried about that one, I sanded really hard to try to eliminate the seam, and also tried to shave it down with a razor. I was never really satisfied with the seam being completely gone, so I just put that patch on there and hoped for the vulcanizing to do its chemical magic and shift those rubber molecules around, close up any avenue for air to escape along the seam.
Easiest way to sand down seams is to fold the tube so the seam is on the edge of the fold and just sand away until it's gone. No chance of sanding too much of the area around the seam and much faster and easier to get it done.