I just replaced the chain on a 3x6 drivetrain bike with largest chainring 52 and largest cog 30. It seems to me that the last time I did that for this bike (about 10 years ago...but I don't use this bike all that often), the new chain fit with several links to spare. To my surprise, the KMC 8-speed chain I bought this time fit, but exactly, with no links to spare. Am I hallucinating, or are they short-chaining us?